Persistent or recurrent delay or absence of orgasm after a normal excitement phase of sexual activity that is assessed as adequate in focus, intensity, and duration.
Some research suggests that failure to achieve an orgasm for women is related to intimacy issues, feelings of fear and anxiety, and a sense of not being safe within the intimate relationship or relationships in general.
There are many reasons that women experience low sex drive. Selmedica has a prduct, Erostat, that they claim is an all-natural product that has been proven to greatly increase sexual desire in women.