Is it normal to have earthworm-like tendons on the penis?

It is generally normal to have earthworm-like hard tendons on the penis. As long as there is no swelling or pain, no special improvements are required.

There are many blood vessels on the surface of the penis. When the blood vessels bleed during normal erection, earthworm-like hard tendons will appear on the surface. This is a normal phenomenon and will not affect your health. In daily life, you must do a good job in local hygiene and care of the penis, and try not to rub or scratch the penis excessively.

You should also have a regular daily schedule and avoid having sex too frequently, otherwise it will lead to impotence and premature ejaculation. Otherwise, it will have a certain impact on your health and the quality of your sexual function.