Perianal abscess flowing pus needs to be considered for surgical treatment. The flow of pus from perianal abscess means that the perianal abscess has broken down locally, which is roughly divided into two cases: first, conservative treatment, then surgical treatment, and direct surgical treatment, as follows: first, conservative treatment, then surgical treatment: pus drainage is relatively smooth, and the local swelling and pain of the anus disappears and relieves, at this time, patients can take oral antibiotics and local use of potassium permanganate solution sitz bath cleaning to conservative treatment, and then surgical treatment after the later formation of anal fistula. The patient can be treated conservatively by taking oral antibiotics and using local potassium manganate solution to sit in the bath and cleanse, and then undergo surgery when the anal fistula is formed later. Second, direct surgical treatment: Although the perianal abscess flows, but the pus drainage is not smooth, local swelling and pain symptoms are still very obvious, patients need to go to the hospital in a timely manner, perform surgery to cut and drain the abscess, and keep the pus drainage smooth.