He seriously needs to see a doctor and find out why and what is going on.

I am not a Dr. But I do know alot about mens health.....And he should go see a Dr. Even if it only a blown blood vessel...That alone can lead to other health problems....Good luck

This is very serious. Even blowing up a small blood vessel
can affect the health of the other arteries. He should check out
with a vascular surgeon.

That happened to me too about a year and 1/2 ago I felt suffin weird and when I took it out there was blood everywhere and when I went to the toilet it stung like mad and gettin a shower etc its called the funulla or suffin the big of skin attached to the forskin it ripped I never went to a doc it cleared up after a few days and didnt sting no more its happened to alot of ppl