The scrotum is located in the perineal area between the legs, behind and below the penis. The scrotum is one of the male external genitalia and is a sac of skin that encases the testicles, spermatic cord, etc. The scrotum is located below the pubic symphysis, in the perineal area between the roots of the legs, underneath the penis and in front of the anus. The scrotum is a skin pouch composed of skin and lining. The skin is thin and soft, dark in color, with a small amount of pubic hair; the lining is superficial fascia, which is continuous with the perineum and the fascia of the lower abdomen, and the smooth muscle fibers of the lining can be stretched and contracted with the temperature changes to regulate the temperature inside the scrotum, which is conducive to the survival and development of spermatozoa. There exists a separation of the scrotum along the midline, which divides the scrotum into two cavities, left and right, and each side of the cavity is wrapped with testes, epididymis, spermatic cord, and so on. When testicular syringomyelia occurs there will be a scrotal swelling manifestation, orchitis, epididymitis will have scrotal pain. It is recommended to consult a doctor when abnormal scrotal symptoms are present and follow the doctor’s instructions for treatment.