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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 is urethral stricture? A urethral stricture is a scar that surrounds the urethra urethra (the tube that carries urine from the bladder to the tip of the penis) for a short or long distance and blocks the flow of urine. It is caused by infection, …
Condition
Infertility—the inability to conceive a child after one year or more of unprotected sexual intercourse– affects about 15 percent of couples. Male infertility plays a role in about half these cases. The problem may be a result of low or poor quality sperm …