Drinking a little garlic water on the blood, may be internal hemorrhoids, anal fissure, gastric ulcers and other causes, need to be given according to the cause of the cotrimoxazole, erythromycin, omeprazole and other medication or surgical treatment. 1. Internal hemorrhoids: drinking garlic water leads to constipation, defecation is too violent leading to internal hemorrhoids, capillary rupture caused by blood, can be given to the Ma Yinglong hemorrhoidal suppository embolism, compound angular cucurbit acid ester and other drug treatment. For drug treatment effect is not good patients can consider surgical treatment, such as internal hemorrhoid hardening injection, hemorrhoidal mucosal resection anastomosis and other treatments. 2. anal fissure: drinking garlic water leads to constipation, defecation force too much leads to anal fissure, causing blood in the stool, can be given potassium permanganate solution sitz bath, apply mupirocin ointment, erythromycin ointment and other treatments. 3. Gastric ulcer: gastric ulcer patients drinking garlic water may aggravate the symptoms, causing bleeding ulcer surface resulting in blood in the stool, can be given omeprazole, magnesium aluminum carbonate, aluminum thioglycollate and other medications. Drinking a little bit of garlic water on the blood, it is recommended to consult a doctor in time to identify the cause of the disease, the specific treatment program in accordance with the doctor’s instructions.