There are many reasons for staying up late with blood in the stool, which may be due to the patient’s prolonged straining condition, which leads to abnormal body metabolism, or other gastrointestinal inflammation caused by straining. So patients should avoid straining and not stay up late for a long time. Patients with this disease have many adverse symptoms, such as painful bowel movements, loss of weight, and poor appetite. Often there are anal fissures, which is why there are bloody stools during defecation. For this condition, patients need to pay more attention to their diet. For example, they should eat more foods that are good for defecation, such as celery and leeks. Avoid eating some spicy and irritating foods, which will aggravate the condition and will not be good for the body. In addition, patients can take some fire-clearing drugs or go to the hospital to take medication according to the doctor’s instructions.