<unk> 's disease is caused by leaky blood vessels near the surface of the skin, capillaries, which allow red blood cells to slip through into the skin. The red blood cells in the skin then fall apart and release their iron, which is released from hemoglobin. The iron causes a rust color and this accounts for the orange tint of the rash. Although the underlying cause for the leaky blood vessels is almost always unknown, researchers suggest some potential triggers. These include the body's inflammatory reaction to some agent, such as a viral infection or a prescription or over the counter medication or supplement, such as thiamine and aspirin. Even though there is no correlation with genetics, there have been a few cases where few people in a family had this condition. Although a definite cause for capillary inflammation is almost always unknown, certain preventive measures can be taken. Doctors may prescribe medications that enhance the circulation of blood, which can keep blood vessels strong and healthy.
Schamberg disease
Keshan disease
Binswanger's disease
Camurati–Engelmann disease
Camisa disease
Kyrle disease
Kikuchi disease
Schindler disease