It’s a known fact that many women take to sexual self-satisfaction. If we consider the fact that the basis of a woman’s sexuality is the strive for attracting men and being penetrated into for the sake of reproduction, then self-satisfaction, which doesn’t serve for reproduction, can be viewed as an additional component, which completes a woman’s sexuality. What is that additional meaning of it?

The trustworthy facts of modern sexology confirm that women, unlike men, differ with their approach of signifying sexual pleasure. Thus we can put under suspicion the speculation that pleasure derived from women’s self-satisfaction is the erotic sensitivity and reliving of lust like men, although this variant is also not excluded.
When a woman finds out that she can reach pleasure and lust by herself, when she knows, that she is the master of the game and the rules of her own game are working, she has a feeling of a kind of almightiness, due to which her perception of females being weak, imperfect and incomplete is revolutionized. 
Besides, masturbation allows to women eliminate men, and push away all possible fears imposed by them. The opportunity of reaching lust on their own becomes a means of avoiding dependence for women. Thus, self-satisfaction arouses a feeling of completeness, safe independence, freedom and eternity. That is why it is sometimes difficult to easily give up masturbation.
And if it weren’t for the main core of women’s sexuality, i.e. the instinct of reproduction, humanity would be on the verge of extinction. So, when masturbation becomes the only way of satisfaction of sexual desire and getting pleasure, an inner conflict arises with one’s own sexuality, and it is here that vaginal insensitivity, divergence of sexual frustration and anorgasmia are born.