Anal pain during or after bowel movements is a very common phenomenon in daily life. Do you still think that this kind of “unspeakable pain” is hemorrhoids? However, it is not that simple. Recently, there is such a patient Chi, although after the rescue, and is a very strong strength of the big three hospitals, or unfortunately due to “anal pain” lost his life. Chi is not a tumor, not a heart attack, not a brain hemorrhage, but just perianal infection, just anal pain. In order to avoid a repeat of the tragedy of Chi, the following to teach you. Causes of anal pain: such as anal fissure, sinusitis, thrombosed external hemorrhoids, paranasal abscess, internal hemorrhoids incarcerated, external hemorrhoidal edema, anorectal cancer, and anal foreign body injury, anorectal surgery. The harm caused by: 1, cause pain; 2, cause constipation; 3, blood in stool: defecation is often seen on the surface of the feces or stool paper with a small amount of fresh blood or drops of fresh blood, over time easy to form anemia; 4, the five signs: pain in the anus in the early days if not treated in a timely manner, there will be anus ulcers, anal papillae, sentinel hemorrhoids, and other three diseases, continue to develop can also be seen in the anus sinusitis and fistula, and the first three diseases collectively known as the “anal pain quintuple sign”. Once the formation of anal pain quintuple symptom, the patient’s condition is more serious, the treatment is also more complex.