An acute purulent infection in the soft tissues around the anal canal and rectum or in the interstitial space around them, and the formation of an abscess, is called a perianal or perirectal abscess. It is characterized by self-rupture or often forms an anal fistula after surgical incision and drainage. It is a common anorectal disease and the acute phase of the pathological process of inflammation of the anal canal and rectum, and anal fistula is the chronic phase. Common pathogenic bacteria include Escherichia coli, Staphylococcus aureus, Streptococcus and Pseudomonas aeruginosa, occasionally anaerobic bacteria and Mycobacterium tuberculosis, and often a mixture of germs. To prevent anal abscess should pay attention to the following six points: 1, do not sit for a long time on the wetlands, so as not to get cold and wet in the anus, causing infection. 2, keep the anus clean, change underwear regularly, adhere to the daily cleaning of the anus after the stool, has a positive effect on the prevention of infection. 3, prevention and control of constipation and diarrhea, whether constipation or sometimes loose, frequent diarrhea, can lead to anal cryptitis, causing perianorectal abscess. When the stool is constipated, the stool stored in the rectum is prone to block the anal fossa, causing anal fossa inflammation and perianal abscess formation. At the same time, dry stools that rub the skin of the anal canal or the anal fossa can also cause perianorectal abscesses. And diarrhea for a long time, sometimes loose, can make loose stool into the anal saphenous fossa, stimulate the anal saphenous fossa inflammation, thus inducing infection. 4, actively exercise to enhance physical fitness, improve blood circulation, strengthen the local resistance to disease, and prevent infection. 5.Actively prevent and treat other anal diseases, such as anal saphenous fossa and anal papillitis, to avoid perianal abscess and anal fistula. 6.Treat systemic diseases that can cause perianal abscess in time, such as ulcerative colitis, intestinal tuberculosis, Crohn’s disease, etc.