This article discusses the flaws of the Diagnostic and Statistical Manual of Mental Disorders (DSM) criteria of sexual dysfunctions. It focuses on issues such as what constitutes sexual dysfunction, whether the diagnostic criteria should include duration, intensity, and frequency, and whether distress should be used as a diagnostic criterion. Other controversial issues such as normalcy of sexual functioning and validity of some diagnostic entities are also discussed. The upcoming revision of the DSM diagnostic criteria should consider all these possible changes. Field trials to examine various criteria and their validity and reliability will probably be necessary.