A recent Lancet case study of a 33-year-old man with long Covid reported “rapid purple discoloration” of the patient’s legs after he would stand for 10 minutes. The patient had been experiencing this ...

Peripheral artery disease (PAD) and chronic venous insufficiency (CVI) both affect your blood vessels and prevent your body from getting the oxygen-rich blood that it needs. The difference between the ...

Changes in skin color can occur for many reasons. The skin may appear temporarily blotchy due to being hot or blushing. In other cases, discoloration can signal a health condition. Several factors ...

Kaposi sarcoma (KS) is a rare cancer that can cause skin lesions on a person’s feet. The lesions may appear as purple, reddish-blue, or brown marks on the skin, and people may mistake them for other ...

What is a blood clot? Blood clots normally form after an injury to protect your body from losing too much blood, but they can ...