Why does the penis grow bigger and harder?

When a man's penis reaches the age of 18, it has already grown and matured. If you want to make your penis bigger, harder and longer, you can first improve your diet and eat more kidney-nourishing foods, such as walnut meat, amaranth, and pork kidneys. Pay more attention to exercise and improve your physical fitness. You can also consider surgical treatment at a reliable hospital's urology department to increase the size and thickness of your penis through surgical treatment. But don't blindly believe in taking medicine. Taking medicine will not make the male genitals thicker and larger.

The loosening and hardening of the penis is a whole process of hardening and softening, which is controlled by the autonomic nervous system, including the central nervous system and the sympathetic nervous system. For example, when working, people's thoughts are more focused, the central nervous system is excited, and the peripheral nerves will metabolize a substance that makes the cavernous body contract. At this time, the penis is in a soft state; once the body has an impulse and a certain degree of sexual excitement, the sympathetic nerves will be excited, and the peripheral nerves will release substances that soften the blood vessels, making the cavernous body contract. The pressure in the cavernous body of the penis increases, and the penis will become fully hard. When a man ejaculates, the central nervous system is stimulated to release smooth muscle contractile substances, the cavernous body blood sinuses are closed, and the male genitals become soft.

If the testicles become larger and harder, it is recommended to go to the hospital for further examination to confirm the actual cause. There may be: 1. Inflammation of the male testicles, at this time, the volume can be enlarged, and the relative density increases with significant pain, and the pain is significant when touched forcefully. It is recommended to go to the hospital for regular B-ultrasound examinations of the male testicles and routine blood tests to confirm whether there is orchitis. 2. Male testicular tumors can be mainly manifested as enlarged male testicular volume, and the relative density becomes hard, and the pain is not significant. As time goes by, the volume can slowly expand, and it can also be accompanied by hydrocele of the male testicles. It is necessary to conduct male testicular tumor index tests and male testicular ultrasound examinations for further diagnosis.

Epididymitis, epididymitis is first manifested by the enlargement of the epididymal cyst, which then spreads to the male testicles, with enlargement and hardening of the texture. The hardening of the texture is mainly uneven, mainly on the posterior and lateral sides of the male testicles, and the internal oblique muscles are relatively soft. It is necessary to conduct a B-ultrasound examination of the scrotum for further identification.