Rashes: Rashes is listed as an alternate name or description for symptom:
Causes of Rash (Rashes): See detailed list of causes below.
Medical Book Extracts related to Rash (Rashes): Refer to the excerpt book sections about Rash below.
Rash (medical symptom): Rash of any type affecting the skin.
Rash (medical symptom): There are many possible causes of a rash and any rash needs prompt investigation by a doctor or a dermatologist. Rashes can be caused by illnesses such as viruses (e.g chicken pox) or systemic conditions (e.g. lupus), by allergies such as hives or eczema, parasites like lice in scabies, by reactions to chemicals, and by numerous other causes. One of the most feared but less common rashes is that caused by meningococcal disease, which is a characteristic hemorrhagic rash, caused by bleeding of capillaries just under the skin (see hemorrhagic rash for more details). Any type of hemorrhagic rash is a medical emergency.
The list of medical condition causes of Rash (Rashes) includes:
Review the causes of the following types of more specific symptoms for Rashes:
Research the causes of these related symptoms that are similar to, or related to, the symptom Rashes:
Research the causes of these symptoms that are more broader types of symptom than Rashes:
For a medical symptom description of 'Rashes', the following symptom information may be relevant to the symptoms: Rash (symptom). However, note that other causes of the symptom 'Rashes' may be possible.
More information on symptom: Rash:
Free access to excerpts from published medical book extracts about the causes and diagnosis of Rash from the following published medical books is available for more detailed information that is related to Rashes.
... Is it focal or diffuse? Focal rashes suggest the dermatophytoses, scabies, actinic dermatitis, herpes zoster, warts, contact dermatitis, erythema nodosum, actinic dermatosis, dyshidrosis, ... DIAGNOSTIC WORKUP ... READ EXCERPTS »
... Is the rash macular or papular? A macular or papular rash would suggest scarlet fever, measles, erythema multiforme, exfoliative ... DIAGNOSTIC WORKUP ... READ EXCERPTS »
... Itching at the anus is almost always due to anal or rectal conditions, the most likely of which is hemorrhoids. If there is frequent passage of bright red blood in the stool along with a painful bowel movement, one should look... DIAGNOSTIC WORKUP ... READ EXCERPTS »
... Is the pruritus associated with a generalized rash? Almost every generalized rash may be associated with pruritus, but the most common ones are urticaria, dermatitis herpetiformis, eczema, ... DIAGNOSTIC WORKUP ... READ EXCERPTS »
... Is there a vaginal discharge? The presence of a vaginal discharge should suggest candidiasis, trichomoniasis vaginitis, and bacterial vaginitis. Is there a rash? The ... DIAGNOSTIC WORKUP ... READ EXCERPTS »
... Urticaria, also known as hives, is a very common clinical presentation characterized by transient (<12 hours), itchy dermal wheals. Angioedema is defined as subcutaneous or mucosal (often of the lips) swelling that is episodic and>... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Scalp dermatitis or infection is easy to diagnose, but it can be challenging to treat. Topical therapy or topical plus systemic therapy for prolonged periods are often necessary to successfully control these disorders. Seborrheic dermatitis... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Pruritus, or itching, is the most common dermatologic complaint. When pruritus occurs without cutaneous findings, a thorough history, physical exam, and laboratory tests must be obtained to rule... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Hand and foot rashes do not all look alike: Look for the subtle clues discussed below and obtain a detailed exposure and health history to narrow the differential. Be sure to evaluate the full... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Pruritus, or itching, is the most common dermatologic complaint. When pruritus occurs with cutaneous findings, the clinician must carefully analyze the dermatologic findings to... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... The etiologies of rash with fever are vast, but a systematic approach will help the clinician quickly narrow the differential. Patients who appear “toxic” with fever and... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Skin lesions in the genital area are common, and the etiology can range from simple irritation to sexually transmitted diseases to malignancy. The appearance of the lesion, the presence... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Papulosquamous is a term used for skin lesions that are papular and present in the superficial skin layer (the squamous layer). Papulosquamous rashes are defined as exanthems that have palpable... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Vesicular and bullous rashes must be approached systematically so that serious causes are not missed. Initially, a determination as to whether the lesions are focal or diffuse is made, followed by a history of the lesions, a review of systems... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Pruritus is the desire to scratch that is induced by unpleasant cutaneous sensations caused by histamines and other endogenous substances. Atopic dermatitis is one of the most common childhood skin diseases; emergencies include severe... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Drug-induced urticaria is the most common form of urticaria in children; anaphylaxis and hereditary angioedema are life-threatening conditions; remember ABCs of resuscitation (airway,... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Annular rashes (from Latin “annulus” = ring; syn. circinate) are ring-shaped lesions, although their morphology can vary and may also present as irregular, oval, semiannular, target-like, polycyclic, serpiginous, or reticular... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... Hand and foot rashes are generally nonspecific, but their presence or absence might help in establishing the diagnosis in a wide variety of conditions. The palms and soles are covered with squamous epiderma that is thicker than in... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... The term morbilliform means “measles-like.” Approximately 80% of all cutaneous drug reactions are morbilliform in nature, and many nonspecific viruses cause a morbilliform rash. True... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... A vesicle is <5 mm and a bulla is >5 mm in diameter (epidermal is flaccid; sub-epidermal is tense), a pustule is a pus-filled vesicle or bulla. The most common causes are benign>... Differential Diagnosis ... Workup and Diagnosis ... Treatment ... READ EXCERPTS »
... The differential diagnosis of pruritus is best developed by anatomy. Local conditions such as bites and parasitic infestations (e.g., scabies, hookworms, and schistosomiasis) usually reveal an obvious lesion. Generalized skin ... READ EXCERPTS »
... The best way to recall the causes of a general rash while still examining the patient is to think of the mnemonic DERMATITIS. 4 (See figures on pages ... READ EXCERPTS »
... The differential diagnosis of a local rash is best approached with the mnemonic VINDICATE. V—Vascular suggests livedo reticularis, acrocyanosis, gangrene of Raynaud syndrome, necrotic areas ... READ EXCERPTS »
... Commonly provoking scratching to gain relief, this unpleasant itching sensation affects the skin, certain mucous membranes, and the eyes. Most severe at night, pruritus may be... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... Scaly skin results when cells of the uppermost skin layer (stratum corneum) desiccate and shed, causing excessive accumulation of loosely adherent flakes of normal or abnormal keratin.... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... The presence of a butterfly rash is typically a sign of systemic lupus erythematosus (SLE), but it can also signal dermatologic disorders. Typically, butterfly rash appears in a malar... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pictures ... READ EXCERPTS »
... A papular rash consists of small, raised, circumscribed — and perhaps discolored (red to purple) — lesions known as papules. It may erupt anywhere on the body in various configurations and may be acute or chronic.... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Geriatric pointers ... Pictures ... READ EXCERPTS »
... A pustular rash is made up of crops of pustules — a visible collection of pus within or beneath the epidermis, commonly in a hair follicle or sweat pore. These lesions vary greatly... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... A vesicular rash is a scattered or linear distribution of blisterlike lesions — sharply circumscribed and filled with clear, cloudy, or bloody fluid. The lesions, which are usually... History and physical examination ... Medical causes ... Special considerations ... Pediatric pointers ... Pictures ... READ EXCERPTS »
... Urticaria is a vascular skin reaction characterized by the eruption of transient pruritic wheals — smooth, slightly elevated patches with well-defined erythematous margins and pale centers of various shapes and... Emergency interventions ... History ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... Pruritus with Diagnostic Skin Lesions Infestation (especially scabies, lice, fleas) Xerosis (dry skin; for example, secondary to low humidity or excessive ... READ EXCERPTS »
... Specific antigen sensitivity (e.g., foods, food additives, Hymenoptera venom) Physical agents Pressure, mechanical irritation, ... READ EXCERPTS »
... Rocky Mountain spotted fever (RMSF) is a febrile, rash-producing illness caused by Rickettsia rickettsii. The disease is transmitted to humans by a tick bite. ... Causes and incidence ... Signs and symptoms ... Diagnosis ... Treatment ... Special considerations ... READ EXCERPTS »
... Pruritus ani is perianal itching, irritation, or superficial burning. This disorder is more common in males than in females and occurs in adults and children. Causes ... Signs and symptoms ... Diagnosis ... Treatment ... Special considerations ... READ EXCERPTS »
... Urticaria, commonly known as hives, is an episodic, usually self-limited skin reaction characterized by local dermal wheals surrounded by an erythematous flare. Angioedema is a subcutaneous and dermal eruption that produces... Causes and incidence ... Signs and symptoms ... Diagnosis ... Treatment ... Special considerations ... Pictures ... READ EXCERPTS »
... Commonly provoking scratching to gain relief, this unpleasant itching sensation affects the skin, certain mucous membranes, and the eyes. Most severe at night, pruritus may be exacerbated by increased skin temperature, poor skin... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... Scaly skin results when cells of the uppermost skin layer (stratum corneum) desiccate and shed, causing excessive accumulation of loosely adherent flakes of normal or abnormal keratin. Normally, skin... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... READ EXCERPTS »
... A butterfly rash is typically a sign of systemic lupus erythematosus (SLE), but it can also signal dermatologic disorders. Typically, this rash appears in a malar distribution across... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Pictures ... READ EXCERPTS »
... An important indicator of neurofibromatosis and other congenital melanotic disorders, café-au-lait spots appear as flat, light brown, uniformly hyperpigmented macules or patches on... History and physical examination ... Medical causes ... Special considerations ... READ EXCERPTS »
... A papular rash consists of small, raised, circumscribed—and perhaps discolored (red to purple)—lesions known as papules. It may erupt anywhere on the body in various configurations and may be acute or chronic. Papular... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Geriatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... A pustular rash is made up of crops of pustules—a visible collection of pus within or beneath the epidermis, commonly in a hair follicle or sweat pore. These lesions vary greatly in... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... A vesicular rash is a scattered or linear distribution of blisterlike lesions that are sharply circumscribed and filled with clear, cloudy, or bloody fluid. The lesions, which are usually less than 0.5 cm in diameter, may... History and physical examination ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Pictures ... READ EXCERPTS »
... Urticaria is a vascular skin reaction characterized by the eruption of transient pruritic wheals—smooth, slightly elevated patches with well-defined erythematous margins and pale centers of... Emergency Interventions ... History ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... READ EXCERPTS »
... Beverly A. VonderPool Approach Pruritus, a sense of the need to scratch, is an unpleasant cutaneous sensation that has numerous causes. A practical approach is to look for... History ... Physical examination ... Diagnostic tests ... Diagnostic assessment ... READ EXCERPTS »
... Rachelle L. Cassity Urticaria (hives) is a common condition. The lesions appear well circumscribed. Typically, they are first erythematous and... Approach ... History ... Physical examination ... Testing ... Diagnostic assessment ... READ EXCERPTS »
... Michael L. O’Dell Fever with an accompanying rash represents a diagnostic challenge for even the most experienced of clinicians, as this combination of signs can represent trivial or life... Approach ... History ... Physical examination ... Testing ... Diagnostic assessment ... READ EXCERPTS »
... Michael L. O’Dell Approach Rashes are commonly described in a defined set of ways. Macules are skin lesions that are flat and discolored,... History ... Physical examination ... Testing ... Diagnostic assessment ... Pictures ... READ EXCERPTS »
... Marcia J. Chesebro Approach The initial approach to the patient with fluid-filled lesions involves assessment of the severity of the... History ... Physical ... Testing ... Diagnostic assessment ... READ EXCERPTS »
... Differential Overview ❑ Eczema ❑ Atopic dermatitis ❑ Seborrheic... Clinical Findings ... READ EXCERPTS »
... Differential Overview ❑ Ingestants ❑ Drugs ❑ Inhalants ❑ ... Diagnostic Approach ... Clinical Findings ... READ EXCERPTS »
... Urticaria, commonly known as hives, is an episodic, usually self-limited skin reaction characterized by local dermal wheals surrounded by an erythematous flare. Angioedema, which can present either subcutaneously... Causes ... Signs and symptoms ... Diagnosis ... Treatment ... READ EXCERPTS »
... Urticaria is a vascular skin reaction characterized by the eruption of transient pruritic wheals — smooth, slightly elevated patches with well-defined erythematous margins and pale centers of various shapes and sizes ... Assessment ... History ... Physical examination ... Pediatric pointers ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... Pictures ... READ EXCERPTS »
... Commonly provoking scratching to gain relief, this unpleasant itching sensation affects the skin, certain mucous membranes, and the eyes. Most severe at night, pruritus may be exacerbated by increased... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... Scaly skin results when cells of the uppermost skin layer (stratum corneum) desiccate and shed, causing excessive accumulation of loosely adherent flakes of normal or abnormal keratin.... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... Urticaria, also known as hives, is a vascular skin reaction characterized by the eruption of transient pruritic wheals — smooth, slightly elevated patches with well-defined erythematous... Emergency Actions ... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... The presence of a butterfly rash is typically a sign of systemic lupus erythematosus (SLE), but it can also signal dermatologic disorders. Generally, butterfly rash appears in a malar distribution across the nose and... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... A papular rash consists of small, raised, circumscribed — and perhaps discolored (red to purple) — lesions known as papules. It may erupt anywhere on the body in various configurations... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Geriatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... A pustular rash is made up of crops of pustules — visible collections of pus within or beneath the epidermis, commonly in a hair follicle or sweat pore. These lesions vary greatly in... History ... Physical assessment ... Medical causes ... Other causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
... A vesicular rash is a scattered or linear distribution of blisterlike lesions — sharply circumscribed and filled with clear, cloudy, or bloody fluid. The lesions, which are usually less... History ... Physical assessment ... Medical causes ... Special considerations ... Pediatric pointers ... Patient counseling ... Pictures ... READ EXCERPTS »
...This chapter focuses on many skin lesionsand rashes seen in pediatric practice. Note that some lesions andrashes fall into more than 1 category in the classification. Principal Causes of Skin Lesions and Rashes Blistering... Clinical Features and Diagnosis ... Diagnostic Approach ... References ... READ EXCERPTS »
... Commonly provoking scratching to gain relief, this unpleasant itching sensation affects the skin, certain mucous membranes, and the eyes. Most severe at night, pruritus may be exacerbated by... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... READ EXCERPTS »
... Scaly skin results when cells of the uppermost skin layer (stratum corneum) desiccate and shed, causing excessive accumulation of loosely adherent flakes of normal or abnormal keratin. Normally, skin cell loss is... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... Pictures ... READ EXCERPTS »
... The presence of a butterfly rash is typically a sign of systemic lupus erythematosus (SLE), but it can also signal a dermatologic disorder. Typically, butterfly rash appears in a malar distribution across the nose and cheeks. (See ... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... Pictures ... READ EXCERPTS »
... A papular rash consists of small, raised, circumscribed—and perhaps discolored (red to purple)—lesions known as papules. It may erupt anywhere on the body in various configurations and may be acute... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... Pictures ... READ EXCERPTS »
... A pustular rash is made up of crops of pustules—a visible collection of pus within or beneath the epidermis, commonly in a hair follicle or sweat pore. These lesions vary greatly in... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... READ EXCERPTS »
... A vesicular rash is a scattered or linear distribution of sharply circumscribed, blister-like lesions, which are filled with clear, cloudy, or bloody fluid. The lesions are usually less than 0.5 cm in diameter and may... History and physical examination ... Medical causes ... Nursing considerations ... Patient teaching ... Pictures ... READ EXCERPTS »
... Urticaria is a vascular skin reaction characterized by the eruption of transient pruritic wheals—smooth, slightly elevated patches with well-defined erythematous margins and pale centers of various shapes and sizes. It... History and physical examination ... Medical causes ... Other causes ... Nursing considerations ... Patient teaching ... READ EXCERPTS »
... The differential diagnosis of pruritus is best developed by anatomy. Local conditions such as bites and parasitic infestations (e.g., scabies, hookworms, and schistosomiasis) usually reveal... Pictures ... READ EXCERPTS »
... The best way to recall the causes of a general rash while still examining the patient is to think of the mnemonic DERMATITIS. D—Deficiency... Pictures ... READ EXCERPTS »
... The differential diagnosis of a local rash is best approached with the mnemonic VINDICATE. V—Vascular lesions suggest livedo reticularis,... Pictures ... READ EXCERPTS »
... Author: Johann Peterson, MD What to Do - Gather Appropriate Data Tinea capitis is a fungal infection of the hair follicles of the scalp and is more common in prepubertal children than in adolescents... Suggested Readings ... READ EXCERPTS »
Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.
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