Painful swelling in the anal area is the main symptom of perianal rectal abscess. On examination, localized redness and swelling of the anus, pressure pain and painful hard lumps can be seen. The lesions are mostly confined to the skin around the anus, but occasionally spread to the buttocks, perineum and clitoris. What are the preventive methods for redness, swelling and painful lumps in the anal area? 1, active prevention and control of constipation and diarrhea constipation in the rectum when the accumulation of fecal blocks easy to block the anal fossa caused by acute anal fossa inflammation, will eventually form a perianal abscess. In addition, dry and hard stool, when defecating, easy to rub the anal fossa caused by perianal infection. Diarrhea for a long time can also stimulate the inflammation of the anal saphenous fossa, and dilute stool can easily enter the anal saphenous fossa and induce perianal infection. Therefore, prevention of constipation and diarrhea is important to prevent perianal abscesses and anal fistula formation. Timely treatment of saphenous fossa and anal papillitis to prevent perianal abscess and fistula formation. Timely treatment of systemic diseases that can cause perianal abscess, such as Crohn’s disease, ulcerative colitis and intestinal tuberculosis, etc. 4, adhere to the sitz bath after each bowel movement, wash the anus, keep the anus clean, to prevent perianal infection is important. 5.If you feel anal discomfort or burning sensation, you should immediately take a sitz bath and seek medical treatment in time.