1, what is the symptom of anal fissure – anal fissure pain: anal fissure can cause periodic pain due to fecal discharge, which is the main symptom of anal fissure. When defecating, the fecal mass stimulates the nerve endings of the ulcer surface, and immediately feel the burning pain in the anus, but a few minutes after the pain relief, this period is called the pain interval. Later, due to the spasm of the internal sphincter, severe pain occurs again, and this period can last for half to several hours, making the patient restless and difficult to bear, until the sphincter is fatigued, the muscle relaxes and the pain is relieved. However, when the patient defecates again, the pain occurs again. This is known clinically as the anal fissure pain cycle. Anal fissure pain can also be radiated to the perineum, buttocks, inner thighs or sacrococcygeal region. 2, what is the symptom of anal fissure – tight: feces dry in the anus is not easy to discharge, this is because often repeatedly tear the anal fissure deepened, anal fissure after a long time, the trauma under the fibrous tissue proliferation and the formation of scars, resulting in anal diastolic degree is limited, so the anus becomes tight, in clinical patients often say that the anus “become smaller”, we can also find the patient’s anus tight, is playing The anesthesia is still a sense of tightness when the finger is examined. 3, what is the symptom of anal fissure – bleeding: anal fissure patients can cause bleeding due to traumatic tearing during defecation, bright red blood, the amount is not too much, in the form of drops, after the end of the stool can stop naturally!