The structure is different

1

The skin of the scrotum is extremely thin, dark brown, and rich in hair follicles and sebaceous glands.

2

The subcutaneous tissue of the scrotum is a fleshy membrane, about 1-2mm thick, mainly composed of smooth muscle, and containing dense connective tissue and elastic fibers

3

The skin of the scrotum has the ability to gather into small folds, which is caused by the contraction of the smooth muscle of the scrotal membrane layer.

4

The scrotal skin is divided into two halves by the median scrotal suture, which extends from the ventral side of the penis to the anus.