Scrotum

The scrotum is a pouch-like structure of skin and muscle that hangs outside the male body, below the penis. Its primary function is to house and protect the testicles, keeping them at an optimal temperature for sperm production. The scrotum's ability to contract and relax helps regulate the temperature of the testicles, moving them closer to or further from the body as needed.

Additional Information

The scrotum is divided into two compartments, each containing one testicle. It's covered in wrinkled skin and usually has hair after puberty. The scrotum plays a crucial role in male fertility by maintaining the testicles at a temperature slightly lower than body temperature, which is necessary for healthy sperm production.

The appearance and size of the scrotum can vary significantly between individuals and can change based on temperature, sexual arousal, and age. It's normal for one testicle (and its side of the scrotum) to hang slightly lower than the other.