My mother stool was tested twice and occult blood has been reported. She is diabetic and hypertensive , earlier she reporting weakness and tiredness so we had her tested and her HG was 8 and then after 15 days fell down to.4 when tested again. , we transfused 4 units of blood to recover. After that , we performed endoscopy and colonoscopy and nothing was found. Still blood is present in her stool. Seems the cause of bleeding is not yet diagnosed..any help is welcome