“Dark spots occur when the skin produces excess melanin, the natural brown pigment that gives our skin color,” says board-certified dermatologist Dr. Michele Green. “The exact reason why ...

Medically reviewed by Soma Mandal, MD Petechiae are tiny red, purple, or brown spots on your skin, inside of your mouth, or ...

This rare skin disorder causes flat brown spots on the lips and the mouth's mucous membranes. The reason for this condition is still unknown, but it doesn't appear to have any connection to ...

It appears as brown or gray-brown patches, often on the face. Hormones and sun exposure typically trigger melasma. Post-inflammatory hyperpigmentation (PIH) occurs after skin injury or inflammation.