Anatomy of a Penis
Physiology of an Erection
How Does the Penis Work?
Types of Erectile Disorders

Types of Erectile Disorders
There are four areas of normal sexual function — libido (desire), erection, ejaculation and orgasm. Problems in these areas can occur separately or in combination. For example, erectile dysfunction can often affect libido and ejaculation, especially when the erectile dysfunction persists. The following table highlights the various causes of sexual dysfunction (excluding impotence). Each problem, regardless of cause, is potentially treatable. If due to erectile dysfunction, they may resolve spontaneously when the erection problem is successfully treated. If not they need to be addressed separately.

	Type of Dysfunc- tion	Psychological Cause	Organic (Physical) Cause	Treatment
Libido	Low	- depression - stress	- hormonal - medication - secondary to organic erectile dysfunction	- testosterone - antidepressants
	High	- obsession - unfulfilled sexual desire	- hormonal - secondary to organic erectile dysfunction	- antidepressants
Ejacula- tion	Early	- anxiety	- secondary to organic erectile dysfunction	- antidepressants
	Delayed	- inhibitions - depression - anger - stress	- alcohol - medication (particularly antidepressants)	- sex therapy
	Unable	- inhibitions - usually is associated with difficulty achieving orgasm	- spinal cord surgery - medication (some antidepressants) - extensive pelvic surgery - radical prostatectomy & diabetes may cause "retrograde" ejaculation	- sex therapy
Orgasm	Prolonged/ Unable	- inhibitions - depression - anger - secondary to low libido	- medication (some antidepressants) - extensive pelvic surgery

Our major area of interest is in erectile disorders.

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