Gray hair is mainly caused by genetic factors, dietary factors, environmental factors, age factors and many other factors, pulling gray hair is generally not harmful. First of all, pulling out gray hair will not make gray hair more and more, because the growth of gray hair is mostly related to genetic factors, dietary factors, environmental factors, age factors, and has nothing to do with the behavior of pulling out gray hair. Secondly, there will not be a situation where the hair cannot grow after pulling out gray hair. The structure necessary for hair growth is the hair follicle, and pulling out gray hair in general will not lead to damage of the hair follicle, which will affect the growth of the hair. To summarize, there is no harm in pulling out gray hair in general. If you have gray hair, it is recommended that you seek medical attention to find out why your hair is turning gray, and then treat the symptoms to improve the phenomenon of gray hair.