it sounds like you could have a hemroid. you can check by feeling around the out side of your rectum. if you feel a vain like thing sticking out then that is what is it. they will bleed especially if your straining when you have a bowel moment that is the only thing i can personally think of that would cause blood outside of your poop. if it continues i would call your primary care doctor and tell them your symptoms. good luck!
i'm not sure if i have blood in my poop but i do know when i push it out and wipe i start to bleed enough to worry. well almost every time i wipe i start bleeding after i poop but today was the first time that my vowel movement was alot of blood in my toliet. but it didnt look like it was in my poop. im worry because my grandfather had colon cancer and it runs in my family. please help