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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 testicular tumors? Testicular tumors are growths on the testicle. They usually occur in the first 2 years of life or during young adulthood after boys enter puberty. The tumors in children that occur during the first 2 years of life are …
Condition
Testosterone is the “male” hormone; it is responsible for the changes that occur in boys during puberty including deepening of the voice, growth of body hair, enlargement of the penis, development of muscle mass, and production of sperm. Testosterone …