某些女性和男性對陰道性交甚或任何類型的性接觸感到厭惡。所以，他們回避所有潛在的性伴甚或已有的性伴。

病因
性偏惡有各種各樣的病因，從軀體疾病、外傷、缺乏性知識、過去的性創傷經歷、不安全感、無緣無故的恐懼、對性伴的憤恨、消極的宗教教化、消沉以及其他更多的原因，不一而足。

治療
考慮到性偏惡的多種可能的病因，每一個病案的治療可能是不同的，需要不同的治療手段，從外科手術、藥物治療到開展性教育，從心理諮詢到強化心理療法，……等等。的確，所面臨的問題也許只是間接地與性有關。所以，要闡述清楚所有的問題恐怕超出了現有的教程範圍。在臨床精神病學的一般課程裏更適合討論這個問題。

Some women and men have an aversion to vaginal intercourse or even to sexual contact of any kind. They therefore avoid all potential partners or even the partners they have.

Causes
Sexual aversion can have a variety of causes from physical illness and injury to lack of information, past traumatic experiences, insecurity, unjustified fear, resentment towards the partner, negative religious indoctrination, depression and many more.

Treatment
In view of the many possible causes of sexual aversion, each case is likely to be different, requiring different approaches ranging from surgery and medication to education, counseling and intensive psychotherapy. Indeed, the underlying problem may only be indirectly related to sex. Thus, the whole subject goes beyond the scope of the present course. It is more properly discussed in a more general course of clinical psychology.