Hi, thanks for using Healthcare Magic. I understand your concern. Abdominal Cramps along with diarrhea can be caused by so many factors. Here are some possible causes of your complaints: 1. Hemorrhoids, occur due to several trigger factors such as straining too strong when passing a stool, pregnancy, old age and so forth. Hemorrhoid is a dilation of blood vessels in the rectum and anus causing some complaints ranging from fresh red feces, sometimes accompanied by a lump in anus, sometimes pain and so forth. 2. Bowel cancer can also lead to blood complaints during passing a stool. 3. Cirrhosis hepatis. Is a liver disease that causes the liver to experience fibrosis. The cause can be due to hepatitis B virus infection, C, long-term alcohol consumption and so on. 4. Gastric ulcer (ulcer in the stomach) can cause black blood red through feces. It is therefore necessary to do a physical examination and or direct investigation by the internist to ascertain the cause of your complaint and to get the appropriate treatment according to the cause. I hope this helps, dr. Nurul Falah.