There is bright red blood after defecation. Urgent! !
If it's the first bleeding, I can tell you that it's probably anal fissure. Because the pain is not strong or even painless when bleeding for the first time.
At school, I often eat dry things like instant noodles and often sit still, so my stool is dry. I didn't feel anything at first and didn't care. Then there was more and more blood, and I thought I was going to die. I didn't know it was anal fissure until I saw a doctor. At that time, it was already very serious, with three cuts, but it gradually got better after taking medicine and avoiding foods such as peppers. Since then, I have paid great attention to it, because it was very painful and troublesome, and I have never committed it again.
These are my suggestions based on my own experience.
Finally, I suggest you go to the anorectal department of the hospital for a check-up.