Once constipation is followed by blood in each stool there is a possibility of hemorrhoids or anal fissures. Constipation is an important factor leading to hemorrhoids and anal fissure, this happens, you should seek medical attention for examination and treatment. 1. Hemorrhoids are divided into internal, external and mixed hemorrhoids. Early hemorrhoids usually do not need treatment, improve constipation, hemorrhoids are likely to recover. (1) Internal hemorrhoids: mainly manifested as blood in the stool and prolapse. Usually blood after stool and generally no pain, mild internal hemorrhoids generally do not have the performance of prolapse, only moderate to severe will have the performance of prolapse. (2) external hemorrhoids: the main manifestations of blood in the stool and itching, wet and unclean, anal discomfort, if the external hemorrhoids occur acute thrombosis will lead to severe pain. (3) mixed hemorrhoids is the simultaneous existence of internal and external hemorrhoids, this stage of hemorrhoids is usually moderate and moderate or more, you need to seek medical treatment in a timely manner, most need to be treated with surgical procedures in order to prevent further development of the condition. 2. Anal fissure is mainly manifested as pain (mostly severe pain), constipation and bleeding, early on, you can take a sitz bath and lubricate the stool treatment, if the method is ineffective, you should seek medical treatment in a timely manner, to decide whether to carry out other related treatments.