You may have heard stories that men will go to crazy lengths to add inches onto their penis, but a recent case study from Pakistan shows one method that actually worked. The 34-year-old patient did not produce enough testosterone due to a pre-existing condition. However, after testosterone injections over the course of nine months, the man’s penis nearly doubled in length.

According to the case study published in the BMJ Case Reports, the man was diagnosed with hypogonadism, a condition where his body does not produce enough testosterone. The man had originally gone to doctors with concerns about his lack of facial and body hair, but closer examination revealed a significant problem with his penis and testicle size. As a result of his condition, he never fully developed, was unable to grow a beard or armpit and pubic hair, had very few erections, and an extremely small penis—1.9 inches when stretched. In addition, he also had very small testicles, about half the size of the average man’s.

Read: Do You Have The Right Amount Of Testosterone In Your Body? Normal Range Of Male Sex Hormone Revealed In Landmark Study

The patient was given hormone injections over a period of nine months, and his penis length nearly doubled to 3.7 inches. His testicles also doubled in size, IFLscience reported.

This is very much a case of “do not try this at home,” IFL Science emphasized. The man’s case was rare and the same treatment would likely not help lengthen the penis of an otherwise healthy male.

According to The Mayo Clinic, male hypogonadism can begin during fetal development, before puberty, or even during adulthood. In the case of adult hypogonadism, the condition can cause erectile dysfunction, infertility, decrease in beard and body hair growth, decrease in muscle mass, development of breast tissue, and loss of bone mass. The condition can also cause mental and emotional changes similar to those women may experience during menopause. These may include fatigue, decreased sex drive, difficulty concentrating, and hot flashes, The Mayo Clinic reported.

Hypogonadism is marked by inadequate testosterone production, but this can either be caused by a problem with the testicles, or a problem with the pituitary gland. The condition can also lead to more serious complications than just a small penis, such as ambiguous or abnormal genitalia, and unproportional growth of the arms and legs when compared to the rest of the body.

Hypogonadism is usually treated with some type of hormone replacement therapy to make up for the lack of testosterone, whether this be an injection, patch, gel, gum, tablet, or nasal spray. However, this treatment also carries a number of risks, such as prostate growth, enlarging of breasts, problems with sperm production, and the formation of blood clots.

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