ABSTRACT
Obstruction of the lower urinary tract is essentially a disease of the male, due to lesions such as posterior and anterior urethral valves, polyps, strictures, syringoceles and meatal stenosis.
Both in males and in females, the effects of lower urinary tract obstruction may be far-reaching, involving the bladder with abnormal bladder function, vesicoureteric junction obstruction, hydroureteronephrosis, dysplasia and even, in severe cases, renal failure. These factors must be considered when lower urinary tract obstruction is suspected and diagnosed. They are most common and relevant in the situation of posterior urethral valves.
