<human>: I have been having this excruciating pain in my lower abdomen just below my belly button and then i have the greatest urge to go and pass stools, when I got the pain builds up and a lot of blood is in the toilet and my stool can vary from black to a yellowish brown.
<bot>: Hi. Thanks for your query and an elucidated history. Noted the history of bellow-belly button pain, urge for motion and passing of blood / black stools. You're telling us more about other history would have helped me, like :Since when have you got this problem? Any other associated symptoms of loss of weight or appetite, bloating of abdomen and so on. Well with the available history I would suggest you the following:Get a colonoscopy done CT scan of the abdomen. Investigations of blood, urine and stool. This helps us to come to a conclusive diagnosis to get a perfect plan for further treatment.