A long beard is a sign of a man's secondary sexual characteristics. The emergence of secondary sexual characteristics is stimulated by androgen secreted in the testis after men enter puberty. Boys rarely have androgen in their bodies before puberty, so little boys can't see beards. After junior high school, the surrounding boys gradually began to grow thick beards, but this is also related to the amount of androgen in the human body. Some people have hair on their faces, others are clean and white, and they can hardly see their beards.
A healthy man's beard grows 0.4 mm a day, which is faster than his hair (0.2 ~ 0.3 mm a day). This is because the blood vessels in the bearded area are more distributed than the hair roots, and nutrients are easy to obtain. The average adult has about 25,000 beards, which vary greatly according to different individuals. Men began to grow beards in their teens, and they grew most luxuriantly around the age of 30, and then they gradually decreased.
So the frequency of shaving only varies from person to person. Generally, you can shave once every 2-3 days or once a day. But be careful not to scrape too hard and hurt your skin, which may cause infection.
Also, young people try to shave late because they are young and have metabolic disorders. Premature shaving may stimulate hair follicles, resulting in heavier shaving. As long as you keep your face clean, there is no need to pursue shaving frequency.
Back to this question, shaving regularly will not do any harm to your health, but you need to pay attention to the time and method of shaving.
Be sure to soften it before shaving. You can use soap, shaving lotion, etc. This will make shaving easier and reduce pain.
At present, you can choose electric shaver or blade shaver for shaving according to your own situation.
Be sure to clean up after shaving.