Patients with perianal abscess should increase their nutrition after surgery because that wound must be nutritious to grow well. So eat more high-protein foods, such as fresh meat and seafood. Generally these can be eaten, not that some people say they can’t eat. Perianal abscess infection will have a certain consumption of human nutrition, and also fever and chills, so you should take the initiative to mediate. After the surgery, the patient with perianal abscess will cause contamination of the wound every time he defecates, and the pain will lead to the occurrence of constipation. Therefore, patients should be advised to drink more water, eat more fresh vegetables, fruits and fiber-rich cereals, and eat mainly a liquid diet with as little dry stool as possible, so that repeated stimulation of the wound will cause pain and is not good for wound healing. Therefore, patients with perianal abscesses should mainly eat a liquid diet, increase fruits appropriately, and wash and change medication in time after each bowel movement to prevent infection and promote healing.