High level perianal abscess refers to the perianal abscess above the anal raphe muscle, due to the deeper location, and most often accompanied by anal fistula, so simply give incision and drainage may not be completely eradicated, there is the possibility of recurrence or development of anal fistula. Perianal abscess incision and drainage is mainly to open the abscess cavity, discharge the internal pus and remove the necrotic tissue, and place drainage strips to drain the abscess cavity until the wound is completely healed, however, it may not be a complete cure. The high perianal abscess is often accompanied by anal fistula, and simple incision and drainage will not deal with the fistula, there is a possibility of recurrence. In addition, after the high perianal abscess incision and drainage, the patient is prone to further development of anal fistula, the formation of internal and external mouth, fistula, the later can be manifested as repeated episodes of secretion out of the external mouth with pain, itching and other symptoms. If you find high perianal abscess, please go to the hospital in time, under the guidance of professional doctors to choose the appropriate treatment to avoid adverse consequences.