Common causes of fecal occult blood include gastritis, enteritis, gastric ulcer, duodenal ulcer, intestinal polyps, and ulcerative colitis. Some of the weak positive fecal occult blood can be cured by themselves, and some can not be cured by themselves. It is necessary to consult a doctor in time to clarify the cause of the disease, so as not to aggravate the condition. Certain diseases such as gastritis, hemorrhoids bleeding caused by occult blood weak positive, bleeding can be self-healing, enteritis, gastric ulcer, duodenal ulcer, intestinal polyps, ulcerative colitis caused by occult blood weak positive generally can not be self-healing. It is recommended to go to the hospital in time, under the guidance of the doctor for further examination. Determine the location and nature of the bleeding, and then follow the doctor’s instructions for proper treatment. Pay attention to regular follow-up, review, in order to monitor changes in the condition. Normally, pay attention to a light diet and balanced nutrition. Eat more fresh vegetables and fruits, avoid cold, fried, spicy and other stimulating foods. Eat less hard food to avoid damage to the mucosa of the gastrointestinal tract. Pay attention to eating habits, eat slowly, avoid overeating. Pay attention to food hygiene and do not eat unclean or expired food. When discomfort occurs, it is best to eat soft, easy to digest food. Life should quit smoking, quit drinking, do not stay up late. Keep a happy mood. Appropriate physical exercise to strengthen physical fitness and reduce the chance of disease.