 [ Symptoms ] blood in my stool i have been hurting in my bottom for the last week well today i had a bowel movement and it was a lot of blood in the stool what can this be my grandmother and aunt on my fathers side died of colon cancer i told my doctor that he said i did not have to be checked till i was over 40  my aunt was 29 when she died  what should i do [ Disease ] hi blood in stools or urine see your doctor asap make that a golden rule always good luck