Anal fissure is a common disease. It ranks second in incidence among anorectal diseases, after hemorrhoids. Because the symptoms are similar to hemorrhoids, it is not easy for ordinary people to distinguish. Its patients are most common in young people and children around 20 years old, rare in the elderly, and significantly more women than men. What is anal fissure? It is a longitudinal, fissured ulcer on the skin of the anal canal, and the main symptoms after the onset of the disease are pain and bleeding. When defecating, the stool passes through the affected area, which will trigger severe pain that lasts for hours after defecation, and in severe cases, will not be relieved until the next defecation. Bleeding is mainly fresh blood, dripping out during defecation or wiping blood on handkerchief after defecation, and stopping after defecation. The difference between anal fissure and hemorrhoids is that: hemorrhoids generally bleed more than anal fissure; anal fissure has more intense pain, although external hemorrhoids will also be painful during an acute attack, but not like anal fissure pain with a clear pattern. Anal fissure is divided into acute and chronic two kinds, acute is the early stage of anal fissure, the condition is light; chronic anal fissure fissure is deeper, repeated not healed, fissure around the formation of scar tissue, or accompanied by external hemorrhoids, anal papilla hypertrophy and anal fistula. Why does anal fissure form? The internal sphincter of the anus is stimulated by acid and intestinal dirt and spasms, resulting in localized ischemia of the anal canal; at the same time, because the anal canal can not be normally stretched when defecating, stool discharge obstacles, forcible discharge will aggravate anal fissure. The sensitivity of young people’s internal sphincter is higher, coupled with diet, irregular life, constipation is more, so the incidence rate is high. Children with immature anal sphincter, less vegetables and crude fiber foods in their diet, and coarser and harder feces will likewise be more prevalent. Women’s perineal sphincter is weaker, especially during menstruation and pregnancy, the pelvis is congested, the reflux is not smooth, coupled with the delivery of a force, resulting in ischemia of the anal canal is easy to tear, so the incidence rate is higher than that of men. How to prevent anal fissure? First of all, to correct constipation; secondly, in the diet to light and vegetarian diet, to prevent irritating feces on the anus of the adverse stimulation; finally, to maintain anal cleanliness and hygiene, to prevent infection. Got anal fissure should be treated in time, otherwise, acute can be transformed into chronic, originally with drugs can be cured also become a must surgical treatment. If the development of chronic is not treated, it will lead to constipation, spasm, anal fissure three mutual influence, mutual aggravation, and even lead to gastrointestinal disorders and anorectal neurosis. Acute anal fissure can be cured by non-surgical treatment. You can use drugs (such as potassium permanganate solution) sitz bath; external application of muscle cream, to promote ulcer healing; nitroglycerin ointment external application, can relieve the spasm of the internal sphincter; can also try to expand the anus and drug injection therapy. If it has developed into a chronic, the best and fastest treatment is surgery, usually about a week after surgery to recover. Reminder: suffering from anorectal disease is not a long time to delay the disease, some of the anorectal disease for a long time without treatment will seriously harm the patient’s health, a long time without treatment is also prone to induce a variety of other anorectal diseases in one situation, which will seriously harm the patient’s physical health and affect the patient’s normal life, therefore, if you find yourself suffering from some kind of anorectal disease in life, some symptoms, you must be timely. Therefore, if you find yourself suffering from some symptoms of anorectal diseases in your life, you must go to a professional anorectal specialist hospital for examination and treatment in time.