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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
What is a ureteropelvic junction obstruction? A ureteropelvic junction obstruction (UPJO) is a blockage of urine flow from the renal pelvis to the ureter. The renal pelvis is the part of the kidney that collects the urine made by the kidney and the …
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 …