mastrubation

[SHAN_I]

hi i m atif i m male of 21 yrs
i want to know ,does mastrubation causes general body weakness?
i feel some back pain after mastrbtion?
some people says it affects eye sight?
plz reply me
thanks in anticipation

[Kevin Kennedy, Ph.D.]

I should have added that masturbation absolutely has no impact on vision. That is an ages-old misconception. If a person is too rough during masturbation, irritation or soreness of the penis can result, but otherwise it does not cause any harm.

[Kevin Kennedy, Ph.D.]

No, in a healthy male masturbation should cause neither weakness not muscle soreness.