Fitness basics
Learning Center
Cryotherapy for prostate cancer
Find out how very cold temperatures are used to freeze tissue and treat prostate cancer. Learn about the side effects and potential benefits of cryotherapy.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Nutrition for kids: Guidelines for a healthy diet
See the current children's nutrition recommendations for protein, carbohydrates, more.
Abnormal sperm morphology: What does it mean?
Abnormal sperm morphology may be a contributing factor in male infertility.
Ureteral obstruction
Learn about what causes blockage of the tubes that carry urine from the kidneys to the bladder, tests you might need and how the condition can be treated.
Epidermolysis bullosa
Learn about a rare inherited disease that often shows up in infancy and causes fragile, blistering skin on the palms and feet. Severe disease may be fatal.
Congenital mitral valve anomalies
These heart problems at birth cause the mitral valve to leak or become narrowed. Know the symptoms and treatment.
Osteochondritis dissecans
Osteochondritis dissecans most commonly affects children who are very active in sports. Learn about the symptoms and treatment of this joint condition.
Enlarged breasts in men (gynecomastia)
Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Precocious puberty
Read about what can cause children's bodies to begin changing into adult bodies too soon.
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