File:Severerash.jpg · Wikimedia Commons · See Wikimedia Commons
rash
Sign in to saveAlso known as exanthema, skin rash, eruption, skin eruption
A rash is a change of the skin that affects its color, appearance, or texture.
Key facts
- Medical condition (new).name
- Rash
- Medical condition (new).image
- Severerash.jpg
- Medical condition (new).caption
- A diffuse rash on the back of a human
- Medical condition (new).field
- Dermatology
via Wikipedia infobox
Wikidata facts
- Image
- Severerash.jpg
Show 5 more facts
- Commons gallery
- Rash
- NCI Thesaurus ID
- C39594
- ICD-9-CM
- 782.1
- Commons category
- Diseases and disorders of the skin
- exact match
- purl.obolibrary.org/obo/SYMP_0000629
via Wikidata · CC0
~9 min read
Article
6 sectionsContents
- Differential diagnosis
- Conditions
- Diagnostic approach
- Treatment
- References
- External links
A rash is a change of the skin that affects its color, appearance, or texture.
A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch, become warm, bumpy, chapped, dry, cracked or blistered, swell, and may be painful. The causes, and therefore treatments for rashes, vary widely. Diagnosis must take into account such things as the appearance of the rash, other symptoms, what the patient may have been exposed to, occupation, and occurrence in family members. The diagnosis may confirm any number of conditions. The presence of a rash may aid diagnosis; associated signs and symptoms are diagnostic of certain diseases. For example, the rash in measles is an erythematous, morbilliform, maculopapular rash that begins a few days after the fever starts. It classically starts at the head, and spreads downwards.