Sexuality is a complex process coordinated with neurological, vascular, and endocrine systems. It incorporates family, societal, and religious beliefs and interpersonal relationships. Sexuality in the Muslim world is further complexed by tradition and discrimination of women. Studies conducted in Ibn Rushd University Psychiatric Center, Casablanca, Morocco, explored various aspects of sexuality in a traditional Muslim society: sexual behaviour (representative sample of Casablanca population n=728), sexual dysfunction (n=644), prevalence of abuse during childhood, effect of breast removal on sexuality (prospective study on 100 patients), effect of menopause on sexuality (comparative study between Moroccan and Tunisian samples, n=200), pregnancy and sexuality (follow up study in primary health care, n=100), and Ramadan and sexuality among healthy fasting people.