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

These often appear pink or red on light skin and dark red, purple, brown, or gray on dark skin tones. These sores quickly grow into blisters that may ooze, burst, and then form a yellowish crust.

As soon as you scrape or break the skin anywhere on your body, special blood cells called platelets (say: PLAYT-lits) spring into action: Scabs are usually crusty and dark red or brown. Their job is ...

These dark spots do not harm your skin and often go away in time ... On the vulva and soft, moist tissue that lines the vagina, this condition can cause purple or reddish-brown bumps and lacy-looking ...

Nails will also discolor and may start to lift away from the nail bed. The first sign of a ringworm infection in the groin is a red (brown or gray in dark skin) rash with swelling and itch in the ...