Low testosterone (male hypogonadism) is a condition in which your testicles don’t produce enough testosterone. It has several possible causes, including conditions or injuries affecting …

Low testosterone is caused by testicular injury, pituitary/hypothalamus disruption and more. Vasectomies and masturbation don’t lower testosterone.

Decrease in hair growth on the face and body Decrease in muscle mass Development of breast tissue (gynecomastia) Loss of bone mass (osteoporosis) Severe hypogonadism can also …

Learn about low testosterone (low T), and the symptoms it can cause, such as low sex drive, low semen volume, difficulty with erection, and hair loss.

Testosterone levels peak by early adulthood and drop as you age. While falling testosterone levels are a normal part of aging, certain conditions can hasten the decline.

Testosterone decreases each year after age 30. Learn about causes such as hypogonadism, and treatments such as testosterone replacement.

Low testosterone (low-T) is underproduction or lack of production of testosterone in men and women. Causes of low-T include chronic medical conditions such as diabetes, infections, …

Low testosterone levels can be caused by health conditions and lifestyle habits, affecting red blood cell production, sex drive, and muscle building.

Low testosterone (male hypogonadism) is a condition in which the testicles do not produce enough testosterone (the male sex hormone), which is essential in men to help them maintain …

Low energy, mood swings or weight gain? A Geisinger urologist explains signs of low T and how to boost testosterone naturally.