Sexual disorders can be divided into sexual dysfunctions, sexual deviations and gender role disorders .
Sexual dysfunction in men refers to repeated inability to achieve normal sexual intercourse, whereas in women it refers to a repeatedly unsatisfactory quality of sexual satisfaction.
Problems of sexual dysfunction can usefully be classified into those affecting sexual desire, those affecting sexual arousal and those affecting orgasm. Among men presenting for treatment of sexual dysfunction, impotence is the most frequent complaint. The prevalence of prema ture ejaculation is low, while ejaculatory failure is rare.
Sexual drive is affected by constitutional factors, ignorance of sexual technique, anxiety about sexual performance, medical conditions and certain drugs .
The treatment of sexual dysfunction involves careful assessment, the participation (where appropriate) of the patient’s partner, and specific therapeutic techniques, including relaxation, behavioural training and supportive counselling
Affecting sexual desire
Impaired sexual arousal
Failure of arousal in women
Orgasmic dysfunction in women
Variations of the sexual ‘object’
Variations of the sexual act
Disorders of the gender role
Classification of sexual disorders
Nowadays, sexual deviations are more likely to be regarded as unusual forms of behaviour than as illnesses and doctors are only likely to be involved when the behaviour involves breaking the law (e.g. paedophilia or bestiality) and when there is a question of an associated mental or physical disorder. Homosexuality was formerly classified as an illness but it is now an accepted alternative sexual life-style.
Transvestism is a form of sexual deviation in which individuals, usually men, dress in clothes of the opposite sex. The cross-dressing may either be a symptom of some other sexual deviation or may be employed as a means of fetishistic sexual excitement. It usually begins at about puberty and the transvestite experiences sexual excitement and may masturbate when indulging in this behaviour.
The overwhelming majority of cross-dressers believe that they are of the correct gender, in contrast to transsexuals .