Chapter 18 – Male Sexual Dysfunction, Prostate Disease and Testicular Lumps

Summary of chapter

Male sexual function consists of three components: 

libido or sex drive arousal and the ability to achieve and maintain an erection orgasm and ejaculation

An overview of the normal male sexual response is shown in Figure 18.1.

Figure 18.1 Normal male sexual response

Libido disorders may present as hypoactive desire disorder, inhibited desire or desire discrepancy.

Low testosterone can be a cause of low desire but so can many medical conditions, relationship problems and psychological disorders. The most common ejaculation disorder is premature ejaculation (PE). Other ejaculation disorders include erectile dysfunction (ED), inhibited or delayed ejaculation, and retrograde ejaculation.

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