Reports data from a study of 68 males suffering from functional sexual inadequacy who were examined between 1968 and 1970 in psychiatric clinics in Egypt and Kuwait. The sample consisted of 32 Kuwaitis, 17 Palestinians, and 19 Egyptians. Each was given a conventional psychiatric interview and complete physical examination, and J. Johnson's (1968) classification of sexual inadequacy and selected parameters from the work of Kinsey were applied. Of the 68 cases, 34 belonged to the early onset type and 34 to the late-onset type. Of the former, 17 patients suffered from impotence and 17 from premature ejaculation; of the latter, 30 suffered from impotence, 3 from premature ejaculation, and 1 from retarded ejaculation. Differences between the 3 nationalities in premarital sexual activity, incidence of homosexuality, occupational and educational variables, accompanying somatic complaints, and willingness to see a psychiatrist are examined.