Perianal abscess is a common disease in anorectology, mostly occurring in young and middle-aged people, and in recent years it is not uncommon in newborns, and occasionally in the elderly, with individual patients developing rapidly and even causing septicemia, which is life-threatening. There are many causes of perianal abscess, mainly including the following. 1, the body’s resistance is weakened long-term fat, sweet and thick, eating and drinking has unknowingly weakened your immunity, so that you are defeated in the face of bacterial infestation; there are also some diseases, such as diabetes, tuberculosis patients with reduced resistance, but also prone to perianal abscesses. 2, the infection of the anal gland The anal gland opens in the anal sinus at the junction of the anal canal and rectum, the anal sinus is funnel-shaped upward opening, easy to damage, bacterial invasion can easily cause infection. Infection in the anal sinus will cause suppuration and inflammation to spread to the perianal gap, because the perianal gap has poor ability to resist bacterial infection, the infection is easy to spread in the gap and form abscesses in different parts. 3, stimulation and injury around the anus. For example, frequent consumption of chili peppers and alcohol can lead to local congestion and decreased resistance of the anal canal rectum and induce infection. In addition, dry and hard fecal lumps can abrade the mucous membrane of the anal canal skin, while dilute feces from diarrhea patients enter the anal sinus and lead to anal gland obstruction, and trauma to the anorectum can lead to infection around the anorectum and develop into perianal abscess. How to prevent perianal abscess? 1.Actively exercise to improve blood circulation and strengthen the local resistance to disease, and pay attention to rest to prevent perianal infection. 2.Keeping the anus clean, changing underwear regularly, and cleaning the anus after defecation have certain positive effects on the prevention of infection. 3.Actively prevent and treat other anal diseases, such as anal cryptitis and anal papillitis, in order to avoid perianal abscess.