Masturbation is healthy for men no matter how often they masturbate so masturbating too much will not do your health any harm.
But Chronic masturbation can mess up your sex life and may cause a sore penis, and cause you to lose sensitivity of your penis head which will make it hard for you to ejaculate when masturbating or when you do go to have sex and want to get a woman pregnant.
It can also interfere with your daily and social life if all you do is masturbate and not go out and socialize with other people.