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Condition
Cystinuria is a relatively rare disease in which people inherit an inability to process an amino acid called cystine. Excess cystine winds up in the urine, where it can lead to the formation of stones in the bladder, kidneys, and ureters. Cystine stones …
Condition
What are posterior urethral valves? Posterior urethral valves are obstructing flaps of tissue in the male urethra (the tube that carries urine from the bladder to the tip of the penis) that prevent normal urine flow from the bladder. They are the most …
Condition
Urethral stricture disease is defined as a narrowing of the urethra between its origination at the bladder and its outlet at the penis tip. Patients with urethral stricture disease commonly have difficulty urinating or a “weak stream.” Urethral strictures …