Wart refers to a dermal disease caused by papilloma virus and can be infected by contact. Wart is usually divided into common wart, flat wart, plantar wart and genital wart. Respectively, they are similar to the syndromes of "Wart", "Flat Wart", "Foot Callosity", and "Itching Wart" in
Chinese medicine. It is believed in Chinese medicine that this disease is caused by invasion and accumulation of the exogenous wind, heat and dampness in the muscles and skin, or by failed nourishment in the tendon and meridian resulting from blood dryness due to the liver deficiency. If the condition lasts for a long time, it may lead to stagnation of qi and blood in the collaterals.