How long does it take for a lump to disappear after surgery varies depending on the cause of the lump. First, if after surgery, localized with a small amount of oozing and bleeding, the formation of lumps. At this time, the earliest possible thorough drainage of the trauma, the fluid and blood drainage out, to avoid excessive stagnation in the trauma, the lump can be absorbed and subside faster, in about 7-10 days, the lump can be absorbed. Second, if after surgery, the lump is caused by local scar tissue proliferation. At this time, the mass of the hard texture, often accompanied by a slight pressure pain. Through localized moxa fumigation, blood circulation and blood stasis cream external application, etc., can promote the faster absorption of the lumps, and it will take 3-6 months to completely absorb and subside.