Sometimes men with erection problems or a diminished libido have low levels of testosterone, Boyle says. Testosterone deficiencies can also affect mood and energy levels. Boyle tests for testosterone levels and prescribes it as a topical gel, though she warns it is only safe when prescribed and monitored by a physician. Nonprescription testosterone, such as the kind used by some bodybuilders, is dangerous, she warns.
Other tips for preventing penis shrinkage such as stopping smoking and optimizing blood flow to the penis may not have a lot of studies to back them up, but we do know there’s a relationship between healthy blood flow and sexual health. Taking measures to maintain blood flow throughout the body, which includes quitting smoking, may not specifically prevent shrinkage but can promote overall sexual health and wellness.
Herbal remedies, Kegels (pelvic floor exercises — learn more here), and exercises have all been mentioned as potential ways to make your penis bigger. However, we’ve searched and searched for medical evidence that these techniques will work to grow your penis, but there’s simply zero, zilch, nada, no evidence. You may find lots of unverified anecdotes, which come from a sample size of one, but they simply cannot be trusted. After all, no one on the internet knows you’re a dog (or liar). We recommend that you avoid these techniques.