The common reasons for not growing a beard are as follows: 1, the body androgen secretion is insufficient, there will be less beard or even no beard, will be accompanied by the throat knot is not obvious or there is no throat knot. 2, if the father’s generation of people who do not grow a beard, by the influence of genetic factors, there will be a situation that does not want to grow a beard. 3, if the chin part of the oil secretion is more proliferative, do not carry out the local cleanup in a timely manner, the secretion of oil led to local Hair follicles appear blocked, resulting in the beard can not be successfully grown, so there is no want to beard situation. 4, due to surgery or trauma caused by the hair follicles of the long beard parts were damaged, affecting the normal growth of local hair. There are many factors of male beard growth, simple do not want to grow a beard, it is recommended to do a good job of local skin cleaning, to observe the main. If you don’t want to beard accompanied by obvious laryngeal development abnormalities, you need to go to the hospital in time.