Why Males Have a Prostate and Females Do Not, and What the Prostate Does
The Prostate Exists in Both Sexes, But Differs Dramatically in Development
Contrary to common belief, females do have prostate tissue—called periurethral glands or the "female prostate"—but it remains underdeveloped throughout life due to lack of androgenic stimulation, while the male prostate develops fully under testosterone influence to serve critical reproductive functions 1, 2.
Anatomical Reality
In Males:
- The prostate is a fully developed gland that surrounds the urethra below the bladder
- It reaches functional maturity at puberty under androgenic (testosterone) stimulation
- The gland continues to grow throughout life, particularly after age 40 3
In Females:
- Periurethral glands exist in approximately 67% of women 2
- These glands are histologically similar to pre-pubertal male prostate tissue
- They remain immature throughout life due to insufficient androgenic stimulus 2
- These glands express the same markers as male prostatic tissue, including prostate-specific antigen (PSA), androgen receptors, HOXB13, and NKX3.1 4
Primary Functions of the Male Prostate
Reproductive Function:
The prostate's central role is producing prostatic fluid that comprises approximately 30% of seminal plasma, which is essential for sperm function and male fertility 1.
Key components include:
- Zinc (Zn²⁺): Critical for sperm activation and regulation of prostate epithelial homeostasis
- Citrate: Provides energy substrate for sperm
- Kallikreins and other enzymes: Enable the molecular synchronization of ejaculation
- Prostatic fluid activates sperm and enables them to reach the egg for fertilization 1
The Ejaculatory Cascade:
The prostate orchestrates a synchronized cascade during ejaculation where prostatic secretions mix with fluids from the testes, epididymis, and other accessory glands to create the complete seminal plasma 1.
Why the Developmental Difference?
Hormonal Dependence:
- Prostate development requires androgens (primarily testosterone)
- Males produce high levels of testosterone starting at puberty, driving full prostate maturation
- Females produce minimal androgens, insufficient to stimulate prostate development 2
Evolutionary Perspective:
- The female prostate appears to be a vestigial homologous structure
- No clear biological function has been identified for the female periurethral glands 2
- Both male and female prostatic tissues share common embryonic origins 4
Clinical Significance
In Males:
The prostate's dependence on androgens makes it susceptible to:
- Benign prostatic hyperplasia (BPH) with aging 3
- Prostate cancer (which regresses with testosterone suppression) 3, 5
In Females:
- The female prostate can develop similar pathologies (prostatitis, hyperplasia, even cancer), though rarely 6, 7
- The female prostate is more sensitive to estrogens and environmental xenoestrogens than the male prostate 6
- These glands are located near the urethra and can be inadvertently damaged during pelvic surgeries, potentially affecting sexual function 4
Common Pitfalls to Avoid
- Do not assume females lack prostatic tissue entirely—they have homologous structures that can develop pathology
- The female prostate's sensitivity to hormonal disruption is often overlooked in environmental health assessments 6
- PSA can be detected in some women with periurethral glands, though at much lower levels than in men 2, 4