Dark underarms may simply have to do with pigmentation and levels of melanin in the skin. But sometimes armpit discoloration ...

Out of more than 3,000 skin diseases, how do you know what condition you have? These 23 skin rash pictures and expert tips ...

If you have tiny red, purple, or brown spots on your skin, they could be petechiae. They're not a disease, but a symptom. Several things, from a severe coughing fit to an infection, can cause ...