Nope , if you masturbate the correct way .
Ask anything you wanna know (:
Masturbation releases hormones which is natural for your body. However, a lot of other things can cause the release of hormones such as working out etc. But yeah ^-^" As Rebekah said, as long as you're not using anything dirty or what not; then it shouldn't be harmful if done in the correct way :)
Hello Melody ♥ I agree with you hun ! If they do it the correct way , it's not harmful in anyway !