There is no universally accepted theory as to how often one should masturbate. Some women regularly masturbate as often as 6 times a day with no apparent harm, and some women have never touched themselves and that too is accepted. Excessive masturbation can only be determined individually, based on the number of skin abrasions, bruises, bleeding or the time spent on this activity and whether it keeps one from engaging in other activities. In part, our desire to masturbate involves needs that may extend beyond sex or morality.