Thanks for your query.
Blood in stools can be caused by many conditions. Given your symptoms, the possibilities would be infection, inflammatory bowel disease
, some growth in the gut, etc. It can also be caused by some serious conditions like cancer.
To rule these possibilities out, a detailed physical examination and some investigations need to be done. The investigations can include fecal occult blood test
, some blood tests, ultrasonography
of abdomen and colonoscopy
. Ultrasonography is imaging of body parts with a computerised machine using sound waves which we cannot see. Colonoscopy means passing a tube through anus to visualize the lower gut internally. Biopsy means taking out small portions of the lining of gut to visualize under a microscope.
Hope I have answered your query.