Talk to General Physician on Blood From Bu*t

Assalamualaikum I'm a 15 year old boy from Karachi I have a serious problem I can't tell my family about that that's why iam asking here anonymously iam too young I can't go to hospital/clinic alone ,so my problem is when i go to washroom there's blood in my poop not to much and it doesn't come everytime it's like 1 /2 times in a month so just 10 minutes before i was in washroom and i was washing my ass and my finger got full red by blood and I'm too afraid I can't talk to anyone about this help me please My email muib449@