The counselling and treatment of individuals with psychosexual dysfunction (see SEXUAL DYSFUNCTION). Around half of couples experience some type of sexual problem during their relationships, and for most of them the difficulties are psychological. Sex therapy is usually given to both partners, but sometimes individual counselling is necessary. Couples may sometimes find that group therapy is helpful. Therapy has proved effective especially for women with VAGINISMUS (spasm of vaginal muscles), men with PREMATURE EJACULATION or IMPOTENCE, and men and women who fail to achieve ORGASM.