Precisely where is the male prostate located?
Jan 07, 2022
Source: Cainiu Health
Dr. Deng Tao
Introduction
The prostate in males is located approximately 2 cm anterior to the anal canal–rectum junction. If palpated with a finger, inserting the finger about 2 cm into the anus allows one to feel a slightly firm, rounded structure—this is the prostate.
Everyone knows that the prostate is one of the most important glands in males. Many people are curious about its exact location. In fact, the prostate lies deep within the male pelvis, situated between the bladder and the urethra. Under normal circumstances, it cannot be palpated externally. In daily life, many men neglect proper bodily care, which often leads to prostate-related diseases—posing significant risks to their overall health.
Exact Anatomical Location of the Male Prostate
The prostate lies approximately 2 cm anterior to the rectum (i.e., just in front of the rectum, about 2 cm from the anal opening). During a digital rectal examination, inserting a finger approximately 2 cm into the anus allows one to palpate a slightly firm, rounded structure—this is the prostate gland.
Functions of the Prostate
Transport Function
The prostatic parenchyma is traversed by the urethra and two ejaculatory ducts. During ejaculation, coordinated contractions of the prostate and seminal vesicles propel semen from the vas deferens and seminal vesicles through the ejaculatory ducts into the posterior urethra, enabling subsequent expulsion from the body. In summary, the prostate performs four critical physiological functions essential to male health.
Urinary Control Function
The prostate surrounds the urethra and lies adjacent to the bladder neck, forming part of the proximal urethral wall. Circular smooth muscle fibers encircling the prostatic portion of the urethra contribute to the internal urethral sphincter. During micturition, detrusor muscle contraction is accompanied by relaxation of the internal sphincter, facilitating smooth urine flow.
Exocrine Function
The prostate is the largest accessory sex gland in males and also one of the body’s exocrine glands. It secretes prostatic fluid—a vital component of semen—that plays a crucial role in supporting normal sperm function and fertility. Prostatic fluid secretion is regulated by androgens.
Endocrine Function
The prostate contains abundant 5α-reductase, an enzyme that converts testosterone into the more biologically active dihydrotestosterone (DHT). DHT plays a pivotal role in the pathogenesis of benign prostatic hyperplasia (BPH). Inhibiting 5α-reductase reduces DHT production, thereby inducing regression of hyperplastic prostate tissue.
We hope the above information is helpful to you. Wishing you good health and happiness!
