sexual disorder sexual dysfunction DOID:1876 NCI:C3347 SNOMEDCT_2010_1_31:231532002 SNOMEDCT_2010_1_31:39894007 SNOMEDCT_2010_1_31:56925008 SNOMEDCT_2010_1_31:65655009 UMLS_CUI:C0549622 abnormal sexual function (finding) disease_ontology MFOMD_0000080 A sexual dyisfunction is a disruption of any part of the normal sexual response cycle. "Understanding abnormal behavior". David Sue, Derald Wing Sue, Stanley Sue. The sexual response cycle can be divides into the following phases: 1.- Desire: This phase consist of fantasies about sexual activity and the desire to have sexual activity. 2.- Excitement: This phase consist of a subjective sense of sexual pleasure and accompanying physiological changes. 3.- Orgasm: This phase consist of a peaking of sexual pleasure, with release of sexual tension and rhythmic contraction of the perineal muscles and reproductive organs. 4.- Resolution: This phase consist of a sense of muscular relaxation and general well-being. Disorders of sexual response may occur at one or more of this phases. Clinical judgments about the presence of a sexual dysfunction should take into account the individual's ethnic, cultural, religious, and social background, which may influence sexual desire, expectations, and attitudes about performance. DSM-IV-TR (american Psychiatric Association)