A perianal abscess does not necessarily turn into a fistula. Properly treated perianal abscesses generally do not become fistulas, perianal abscesses and fistulas are different periods of perianal infection. If the perianal abscess is not treated in time, the condition of repeated episodes of formation of ulceration, it will lead to fistula and other conditions. Perianal abscess refers to the soft tissue around the anus and rectum abscess, redness and swelling around the anus, hard lumps, pain, and even fidgeting and other symptoms, is a kind of acute purulent infection. If the redness, swelling and hot pain around the anus for a long time form a pus cavity or pus and blood, repeated episodes, the pus cavity breaks down will form an anal fistula. Generally, perianal abscess can be cured through surgical treatment, such as incision and drainage, incision and drainage, etc. Surgery for perianal abscess needs to depend on whether the formation of the inner mouth, and the correct treatment of the inner mouth, the possibility of forming anal fistula in the later stage is much smaller. Once the perianal abscess is found, it is recommended that the patient go to the hospital in time, under the guidance of the doctor reasonable standardized treatment.