There is no such concept in medicine as the so-called woolly boil. There is no such disease from the Western medical point of view, nor does it exist within traditional Chinese medicine. It is difficult to make an authoritative interpretation of this disease because it has not been around for a long time, and it is only in certain regions that the practice of wool boils and wool boil picking is available, so it can be generally understood as a treatment method similar to acupuncture and physiotherapy or a small needle knife. Some people believe that wool boils are a kind of abnormal fatty fiber tissue similar to wool that grows under the epidermis, dermis and subcutaneous tissues of the human body, and that picking them out can solve a lot of joint discomfort and pain, soreness, swelling and other symptoms.