Do masturbation effects period?

idk i wondering the same thing.

Not the cycle.

I have read many times that it can reduce cramps, but I don't know for sure.

I've heard it helps with cramps, too. Maybe it's the oxytocin release from masturbating that does it. So I don't think it is a problem to do it while on your period. The muscle spasms and PMS symptoms *can* be helped with a daily calcium and vitamin D3 supplement in my experience.