Testicles, (testes, balls), hang in a bag (scrotum) outside the body, just behind the penis. If there seems to be a problem and it is uncomfortable when the foreskin stretches you should consider talking to a doctor.Ĭircumcision is the removal of the foreskin, it is a simple operation and may be done for religious or medical reasons, but it doesn't affect the way the penis works. In some cases, the foreskin can be tight. The head of the penis is then completely exposed.
When you get an erection, the foreskin stretches. The foreskin is a sleeve of skin that surrounds the head of the penis. Understanding different parts of the penis The foreskin The penis is a sex organ which is partly inside and outside of the body and used for sex as well as urinating (going to the toilet). The penis reaches its full size during puberty and all penis vary in shape and size.