What causes constipation and bleeding in stool

If a friend finds bleeding during bowel movements, he or she should pay attention to it in time and find out the cause, which will help with treatment. Blood in the stool is mostly caused by hemorrhoids, but it may also be caused by anal fissures and other diseases.

1. Anal fissure

Anal fissure is one of the main causes of bleeding in stool. Patients with anal fissure experience unbearable pain and bleed profusely during bowel movements. The main cause of anal fissure in adults is constipation, which is caused by hard and thick stools that stretch and abrade the anus.

2. Hemorrhoids

We say that nine out of ten people suffer from hemorrhoids. In daily life, many people suffer from hemorrhoids. Hemorrhoid patients are divided into internal hemorrhoids and external hemorrhoids. Hemorrhoid patients suffer from damaged parts, which leads to bleeding during bowel movements. Generally speaking, bleeding will stop after defecation. It is recommended that patients with hemorrhoids eat less spicy and irritating foods in their daily lives and focus on light foods.

3. Bacillary dysentery

Patients with bacillary dysentery have blood in their stools, accompanied by tenderness in the left lower abdomen, vomiting, nausea, and frequent bowel movements.

4. Rectal cancer

Rectal cancer is more common in middle-aged and elderly people. There is pus and blood in the stool during defecation, and patients with rectal cancer have more frequent bowel movements.

5. Colorectal cancer

Colorectal cancer is also one of the main causes of bloody stools.