Purple spots on the skin are known as purpura, which is a sign of another condition causing the bleeding. Purpura occurs when small blood vessels leak blood under the skins surface, and it can appear as small dots or larger patches. The spots may also appear on organs or mucous membranes, including the membranes on the inside of the mouth. Purpura can resemble a bruise or look like a spot of blood under the skin. The spots appear differently depending on the skin tone, for example, they may appear brownish-black on darker complexions and reddish-purple on lighter complexions.

Purpura is not a medical condition but a sign of another condition causing the bleeding. It can be caused by various factors, including:

• Blood clotting disorders
• Infection by HIV or Hepatitis C, or some viral infections (Epstein-Barr, rubella, cytomegalovirus)
• Rocky Mountain spotted fever (from a tick bite)
• Systemic lupus erythematous
• Medications
• Medical conditions

Once a healthcare provider determines that the discolored skin spots are purpura, they must determine what is causing it. The healthcare provider will begin with an examination of the skin, discuss the medical history and any drugs or medications the patient is taking, and take note of the size and color of the purpura and when they first appeared.

If you have any concerns about the purple spots on your skin, it is important to speak with a healthcare professional or dermatologist.