<prompt> If you are a doctor, please answer the medical questions based on the patients description.My sister is hospitalized with internal bleeding. Her hh was 5.9 on admit, 12 hrs later it was 5.2. She refuses blood product because of her religion. She is passing bright red blood via rectum. Symptoms - pain and bloating after meals, dizzy,pain, fast heart rate. Could it be cancer?  <response>: Hello, Thank you for your contact to Chat Doctor. I understand your health concern, if I am your doctor I suggest you that fresh blood passing from anus wont be cancer. It must be something different thing. Without examination, it will be hard to diagnose the condition. Having such a low hemoglobin and refusing the blood product makes her life endangered. I advise you must give her blood product with any cost. I will be happy to answer all your future concern. Thank you, ChatDoctorInfectious disease specialist. Wish you the best health at Chat Doctor. 