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Increased rates of Chlamydia in young people as a public health concern

In Great Britain, where Chlamydia Trachomatis is the causative agent of the greatest number of curable sexually transmitted diseases (STDs), Chlamydia remains a pressing problem. According to a report made by the Center for Disease Control and Prevention, at least 20 per cent of young British between the ages of 20 and 24 have Chlamydia, […]


Prostheses have been implanted in men with virtually every known type of impotence, but some men are more appropriate candidates for surgery than others. Urologic surgeons prefer to implant devices in men whose impotence is a result of a physical cause, either neurogenic or vasculogenic. Included in the category of neurogenic impotence are men with […]

Treatment of Vasculogenic Impotence

Impotence due to a failure to fill is treated by isolating and identifying the site or sites obstructing the vigorous flow of blood to the penis. Vascular surgeons have become remarkably successful in creating new channels in arteries or bypassing areas of obstruction so that free flow of blood to the pelvic arteries can be […]

Medium-Size and Small Arteries

Injury to small arterial tributaries out of the main artery may cause impotence without compromising blood flow to the lower extremities. In this case, cholesterol deposits obstructing these penile arteries stifle penile blood flow. It is easy to see how major pelvic injury, pelvic X rays, and injury to the penis can lead to vasculogenic […]

Pelvic Steal Syndrome

The pelvic steal syndrome (also called the iliac steal syndrome) is a consequence of the competition between muscles of the lower legs and the penis for a marginal blood supply. In such a competition, the penis is destined to lose. A man with pelvic steal syndrome can acquire an erection. Problems develop after penetration. When […]

Diabetes Mellitus and Diabetic Neuropathy

Diabetes mellitus is a common medical condition affecting 10 million Americans, 4 million of them men. Diabetes sets in motion events that damage the heart, eyes, and kidneys and prevent nerves from transmitting impulses efficiently. The nerve damage is called diabetic neuropathy, and it takes several different forms. Impotence in diabetic men may be a […]

How Your Nervous System Determines Sexual Responses

Girding for Sex. A man must have an erection to have sex, but his ability to become sexually aroused begins first with signals that originate in his brain, spinal cord, and peripheral nerves. This provides a man with a range of opportunities to be prepared for sex. Not all erections are the same. Different parts […]

Premature Ejaculation

It is often difficult to determine exactly when ejaculation is premature, for in nature the ability to ejaculate rapidly is valued, and in the animal world, rapid ejaculation after vaginal penetration is a desirable trait. Such activity ensures an efficient evolution of the species and also allows the coupling creatures to spend little time in […]


Ejaculation and orgasm occur as pelvic muscles contract to propel seminal fluid through and out the urethra. At the culmination of sexual excitement, carefully timed neurologic impulses act to close the internal bladder valve (sphincter). This allows all the ejaculated seminal fluid to be pushed forward through the urethra (antegrade ejaculation). If the bladder sphincter […]

Azithromycin (Zithromax)

Azithromycin (Zithromax) Dose and Administration Adults: Give 500 mg orally on day 1 followed by 250 mg once a day for a total of 5 days. For the prevention of disseminated Mycobacterium avium complex disease, the recommended oral dose is 1200 mg taken once weekly. For urethritis or cervicitis due to Chlamydia trachomatis, 1 g […]