Sexual function is how the body reacts in different stages of the sexual response cycle. It is defined as the ability of an individual to react sexually or to experience pleasure sexually.[1]
Relevant aspects of sexual function are described on the basis of a modified version of Masters and Johnson's work.[2] The aspects of sexual function determined as being relevant to the assessment include; sexual desire, erection, orgasm and ejaculation. Guidelines for assessing sexual function are suggested and divided into four stages:
Stage 1 deals with the documentation of the defined aspects of sexual function. The main questions are:
Stage 2 deals with the assessment of the frequency of different sexual activities, such as intercourse, within a given time frame. The possible explanations for an absence or a decreased frequency of sexual activities may include physiological, psychological, social, religious and ethical reasons.
Stage 3 it is estimated if or to what extent waning sexual functions and/or activities cause distress.
Stage 4, the association between the distress due to waning sexual function and well-being and emotional isolation is assessed.
These guidelines were constructed to assess male sexual function[3] in relation with treatment for prostate cancer. However, the concept has been modified and adapted for females.[4]
. Masters and Johnson. Virginia E. Johnson . Human Sexual Response. registration . Little, Brown & Co. . 1966. 9780316549875 .