What are ecessive masturbation negative effects? and how often can be too much?

Masturbation: Masturbation is excessive if you are raw or sore. Masturbation is excessive if you find that you are missing out on other activities because you are spending too much time masturbating or thinking about masturbation.

No harm: There is no harm in masturbating. You can hardly masturbate too much, once the sexual tension is relieved, your desire to masturbate will abate. If your masturbating is interfering with your daily life, then it is too much.