Posterior Urethral Valves Do Not Occur in Females
Posterior urethral valves (PUV) are an exclusively male condition due to the anatomical requirement of a posterior urethra, which females do not possess. The condition involves obstructive membranous folds in the male posterior urethra, specifically in the prostatic urethra, which is a male-specific anatomical structure 1.
Anatomical Basis
The most recent European Association of Urology and European Society for Paediatric Urology guidelines (2025) consistently describe PUV as occurring in the male posterior urethra, specifically:
- The obstruction occurs at the prostatic urethra level
- Associated structures include the veru montanum, ejaculatory ducts, and prostate—all male-specific anatomy
- The condition affects "male urethral" structures exclusively 1
The "Female PUV" Misnomer
While extremely rare case reports describe "female posterior urethral valves" or obstructing urethral membranes in females 2, 3, these represent:
- Different pathological entities entirely—not true PUV
- Obstructing urethral membranes at different anatomical locations
- Fewer than 25 cases reported in all medical literature 2
- These should be termed "obstructing urethral membranes" or "female bladder outlet obstruction," not PUV
Clinical Implications
When evaluating a female patient with:
- Bladder outlet obstruction
- Hydronephrosis
- Recurrent urinary tract infections
- Voiding dysfunction
Do not diagnose PUV. Instead, consider alternative causes of female bladder outlet obstruction such as urethral strictures, urethral diverticula, or other obstructing urethral membranes that occur at different anatomical sites than true posterior urethral valves.
The term "posterior urethral valves" should be reserved exclusively for the male congenital condition affecting the prostatic urethra, as defined by current international guidelines 1.