Broken skin keeps running, which may be related to normal phenomenon, fat liquefaction, infection and other conditions. 1. Normal phenomenon: due to skin damage, in the initial stage of recovery, there is normal oozing and bleeding phenomenon, accompanied by obvious tingling sensation, usually about two or three days will gradually decrease. 2. Fat liquefaction: If there is aseptic necrosis of adipose tissue, there will be liquid exudation, and there will be fat particles in this kind of liquid, which is fat liquefaction. 3. Infection: If the broken skin area is not hygienic, the invasion of sewage or dirt will lead to infection of the skin tissue, local fever, oozing, oozing blood, redness, swelling, pus and other manifestations. If the skin has been broken skin has been flowing, the patient should promptly consult a doctor for examination, after a clear diagnosis, with the doctor’s treatment, so as not to delay the condition.