Sexual Dysfunctions in Parkinson's Disease: An Underrated Problem in a Much Discussed Disorder.

Sexual dysfunctions (SDs) are one of the most neglected nonmotor symptoms in Parkinson's disease (PD). A number of reasons including social and cultural factors might explain, at least partially, why SD is still one of the most underrecognized aspects of the condition after 200 years since the very first description by James Parkinson. SD has not been extensively investigated, however, a number of studies have shown a high prevalence of decreased libido, orgasmic dysfunction in both men and women with PD, and erectile dysfunction in male subjects. Moreover, SD in PD also comprises the increasingly recognized hypersexuality that is often associated with PD treatment. Taken together, SD in PD includes a remarkable range of symptoms and conditions that often require a multidisciplinary approach regarding assessment, investigation, and treatment.