C1370 It's a black dragon

Behcet's disease is a kind of immune deficiency disease, which belongs to vasculitis. It can invade every part of human body, including mouth, skin, joint muscle, eye, blood vessel, heart, lung and nervous system. The main manifestations are recurrent ulcer of mouth and perineum, rash, erythema of lower limb, iritis of eye, esophageal ulcer, small intestine or colon ulcer and joint pain