Many patients who have blood in their stool think they have hemorrhoids and always take it lightly, often leading to serious conditions before going to the hospital for examination. In fact, hemorrhoids are only one of the causes of blood in the stool. Colorectal cancer, ulcerative colitis and Crohn’s disease can all cause blood in the stool. Blood in the stool means bleeding in the digestive tract, which is divided into high and low bleeding. High bleeding in the digestive tract, such as bleeding in the esophagus, stomach, and small intestine, is caused by blood leaving the blood vessels and remaining in the intestinal cavity for a longer period of time, and the stool is tarry, black, or coffee-colored, slurry-like, and positive for occult blood in the stool when it is expelled. Low-level bleeding from the digestive tract, such as bleeding from the colon, rectum, and hemorrhoids. Blood in stool caused by hemorrhoids is characterized by blood being discharged from the anus during forceful defecation, in varying amounts, or with blood on the hand paper after defecation, or dripping blood, or in the form of jets, mostly painless, usually fresh blood, not mixed with stool, bleeding is often intermittent after defecation, bleeding will stop on its own after defecation, constipation, dry and hard stool, drinking alcohol and eating irritating food are the main triggers for bleeding in stool. Blood in the stool caused by anal fissure is usually small in amount and accompanied by anal tearing-like pain, with bright red blood, sometimes not during stool, but when wiping hands, mostly due to dry stool. If the blood in the stool is caused by rectum and lower colon, it is often mixed with mucus and has a strange odor, or accompanied by changes in bowel habits and thinning of stool sticks. If there is blood in the stool with mucus, urgency, increased frequency of stool, or periumbilical abdominal pain, ulcerative colitis, Crohn’s disease, dysentery, etc. should also be considered. Therefore, blood in the stool can be caused by a variety of diseases and is not unique to hemorrhoids. In addition, hemorrhoids are not the only symptom of blood in the stool. Generally, in addition to blood in the stool, hemorrhoids also present with symptoms such as something coming out of the anus after a bowel movement, itching around the anus, running water from the anus, and painful swelling next to the anus, and these symptoms can exist alone or several symptoms can coexist for the patient. Patients should not assume that bleeding stools means they have hemorrhoids. They should consider the whole picture and go to a specialist hospital as soon as possible. To prevent misdiagnosis and mistreatment.