My friend bleed from his penis and he masturbates what should he do?

Hematospermia. I disagree a bit with the other physician who answered this question. But, first, hello to utah! too much or too vigorous sexual activity can traumatize the urethra or prostate gland. While this is not common it is not too worrisome unless the bleeding persists beyond the one time event. If there is no trouble with urine and no pain then your friend can wait for now to see the doctor.