hypogonadism, male
"I am 56 years old. I started out with very low Testosterone levels around 150.  Once on Androgel the level peaked at about 500 which was our goal.  At the higher testosterone achieved with 4 pumps I encountered a large weight gain (not all muscle either).  I also experienced an alarming amount of breast enlargement and breast pain behind the nipple. While on Androgel for only a few months I experienced an increase in libido and the return of night/morning erections. I also experienced a remarkable increase in muscle strength."