Perianal abscess is formed by localized suppuration after infection due to various reasons such as anal sinusitis, and the standard treatment method is abscess incision and drainage, filling the abscess cavity with sterile gauze, and allowing the abscess cavity to gradually heal from the inside out. The pseudo-healing of perianal abscess is mainly due to the fact that the abscess does not grow from inside to outside after breaking or incision, the abscess cavity does not heal completely, the simple healing of the subcutaneous tissue of the skin, the pus cavity is prone to residual envelope, pus or necrotic tissue after healing, the subcutaneous tissue will be hard to touch, and even the residue in the subcutaneous abscess cavity can be touched. When the resistance of the organism decreases, it can also lead to symptoms of redness and swelling and recurrence of the abscess. Pseudo-healed perianal abscesses have a higher chance of recurrence, so it is important to go to a regular hospital to receive regular treatment for perianal abscesses and to change the medication on time so that the abscess cavity can heal from the inside out.