Scientific Understanding

The contraction and relaxation mechanism of the scrotum and the function of normal semen and seminal plasma

The contraction and relaxation mechanism of the scrotum and the function of normal semen and seminal plasma

This article explains that scrotal contraction and relaxation are physiological phenomena that regulate testicular temperature and are nothing to worry about. It describes normal semen as milky white and egg-white-like, containing 100-200 million sperm per milliliter, and is weakly alkaline. It introduces seminal plasma as a medium that protects sperm and provides energy for sperm motility. It...

2026-05-24