Consider taking L-arginine. This is an amino acid that leads to increased blood flow, helping the penis get larger during an erection. A study conducted at Tel Aviv University showed that some men experienced improvements after taking the supplement for 6 weeks. It's available in natural food stores, and the recommended dose is 1 gram (0.035 oz) three times a day.
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.
Free fat grafting (FFT) starts with the extraction of adipose (fat-storing) tissue from the thighs of thin men, lower abdomen of normal-weight men, or the pelvic area of overweight men. The tissues are centrifuged (spun at a high rate) to break the cells apart and injected into the penis with a syringe or flexible tube called a cannula. This final step helps prevent the irregular clumping of fat cells. Because 20% to 80% of the fat cells will be reabsorbed by the body in the first year, multiple procedures may be needed.
Even those penile extenders and stretchers that claim to work over time would actually just be stretching your flaccid length, and that has absolutely no correlation to how big you get when hard, says Fisch. So don’t waste your money on a product or service that swears it can give you five more inches. “There’s no actual scientific study that they rely on."
Some men seek injections of natural and synthetic fillers to increase the girth of the penis. Others seek surgery if a smaller penis size or penile abnormality (like hypospadias) is interfering with the ability to urinate or quality of life. Small penis size usually is not an indication for surgery to treat infertility. In such cases, assisted fertility procedures may be the better option.