1.7 millimeters away from the anus skin long nodules are considered to be perianal abscess, after treatment can achieve better results. Perianal abscess that is, perianal abscess, is an acute purulent infection, mainly manifested in the rear or side of the anus subcutaneous, accompanied by obvious redness, swelling and tenderness of the hard nodules, generally not large in scope, with the persistent throbbing pain around the anus, generally no fever, generalized fatigue and other symptoms. When the abscess is formed, the hard nodule seems to be fluctuating to the touch, and at this time, the pus can be extracted by puncture. Perianal abscess has the risk of developing into anal fistula, therefore, once diagnosed, should be timely to the regular hospital. At present, it is believed that the use of abscess incision and drainage for perianal abscess + hanging drainage treatment can avoid the formation of anal fistula, and achieve better clinical results.