Like injectable fillers, these platelet-rich plasma (PRP) treatments involve injections into your penis. First, you get a local and topical anesthetic to keep you comfortable. Then your doctor draws blood from your arm and spins it in a centrifuge to separate the red and white blood cells and concentrate the platelets, which are rich in growth factors. They then inject the platelets into several different areas of your penis.
However, after more than a century of generally dubious and sometimes lunatic penis enlargement attempts, there's still not much you can do. Sure, there are lots and lots of supposed options out there -- penis pills, creams, brutal stretching exercises, horrific-looking devices, and penis surgery. Almost none of it works. The few approaches that can work often have modest benefits and serious side effects. How serious? In some cases, erectile dysfunction-serious.