A man without a beard may be normal. The growth of beard is affected by androgen, which is one of the male secondary sex characteristics. If the hormone level is normal, and the other reproductive organs and secondary sex characteristics are normal, it is normal to have no beard. In addition to hormone levels, there are other factors affecting beard growth, such as heredity, lifestyle, nutrition, and medication, etc. You cannot judge whether a man is healthy simply by whether or not he has a beard; if other reproductive organs and secondary sexual characteristics, and hormone levels are normal, it is normal for him not to have a beard. If a man does not grow a beard, it is recommended to go to a regular hospital in time, complete the relevant examinations, and clarify the reasons under the guidance of the doctor.