From eczema to allergic reactions to bug bites, here’s what common skin rashes look like in photos, and the symptoms that can help you I.D. the condition.

Initial symptoms include sores around the genitals or anus. In the second stage, known as secondary syphilis, its symptoms include fever and a skin rash that may appear on any part of the body ...

Mononucleosis results from Epstein-Barr virus infection. People with the condition may develop a range of symptoms, including a skin rash. Learn more.

Meningitis symptoms include fever, feeling of illness, and headache. There are also some very visible signs of meningitis, notably a distinctive skin rash.

An HIV rash is a common symptom that can happen in early or later stages of HIV infection. Learn more about the types, related symptoms, and treatment of an HIV rash.

Rheumatoid arthritis (RA) mostly affects joints. But flares can cause other symptoms such as rashes. Learn about the symptoms and causes of RA rashes.