Perianal abscess is a common disease in anus and intestines, mostly occurring in young and middle-aged people, in recent years, newborns are not uncommon, and occasionally occur in the elderly, the individual patient’s condition develops rapidly, and even cause septic sepsis, life-threatening. Let’s learn more about it below. The cause of perianal abscess 1, the body’s resistance is weakened. Long-term fat, sweet and thick taste, eating and drinking unknowingly weakened your immunity, so that you in the face of bacterial infestation when a defeat; in addition to some diseases, such as diabetes, tuberculosis patients with decreased resistance, but also prone to perianal abscess. 2.Infection of anal glands. Anal glands open in the anal canal rectal junction of the anal sinus, the anal sinus is funnel-shaped upward opening, easy to damage, bacterial invasion is easy to cause infection. Infection in the anal sinus will cause pus, and the inflammation spreads to the perianal space, because the perianal space has poor ability to resist bacterial infection, and the infection is easy to spread in the space, forming abscesses in different parts. 3.Stimulation and injury around the anus. Frequent eating chili, drinking alcohol and so on will lead to localized congestion of the anorectal tube and intestines, decreased resistance and induced infection. In addition, dry and hard fecal matter will bruise the skin and mucous membrane of the anal canal, and diarrhea patient’s dilute feces into the anal sinus leading to anal gland obstruction, and anorectal trauma to the anorectal injury, etc., can lead to infection around the anorectal canal and develop into perianal abscess. Common symptoms of perianal abscess 1, pain. The most common symptom of perianal abscess is gradually aggravated persistent swelling and pain or throbbing pain, which makes it difficult to walk and limited to sit. 2, hard lump. Initially, a hard lump protruding from the anus gradually increases in size, and some of them may break out on their own after a long time. 3.Fever. Localized inflammation, redness and swelling accompanied by fever, often low fever and sometimes high fever. Body temperature can be between 37～40℃. In addition, there may be generalized tiredness and discomfort, loss of appetite, poor sleep and so on. How to prevent perianal abscess 1, actively exercise, enhance physical fitness, improve blood circulation, strengthen the local resistance to disease, prevent infection. 2, avoid sitting on the wet floor for a long time, so as to avoid the anal part of the cold and wet, causing infection. 3, the prevention and treatment of constipation and diarrhea, to prevent perianal abscess and anal fistula formation is important. 4, once the perianal rectal abscess, should be early treatment, in order to prevent its spread, spread. 5, keep the anus clean, change underwear, clean the anus after bowel movement, have a positive effect on the prevention of infection. 6, active prevention and treatment of other anal diseases, such as anal cryptitis and anal papillitis, in order to avoid perianal abscess and anal fistula.