Dr. Patrick J Lenahen M.D.

What is Smegma?In uncircumcised males, smegma is a sebaceous matter made up of oil and dead skin cells, which accumulates under the foreskin. In females, it accumulates around the folds of the labia. It is not a serious condition and not a sexually transmitted infection. However, a smegma buildup...

What are the Different Types of Bladder Cancer?The bladder is a very important organ, usually found on the pelvis (lower abdomen). This hollow organ acts as a storage unit for the urine formed by your kidneys. Being such an important organ of the urinary tract, it is at high risk, since it receives...

Treatments for Erectile DysfunctionErectile dysfunction is a problem that affects the ability of men to have and maintain their erections. It can cause emotional and psychological stress, especially for people with low self-esteem or those who suffer relationship troubles because of it. However, it...

Male reproductive systemMost of the components of this system are located outside the male body. The testis, penis, scrotum, and epididymis are some of the structures. For sexual intercourse the male organ responsible is the penis. From the urethra the semen is released through the penis. The...

Hematuria, or the presence of blood in urine, is more of a symptom rather than a medical condition in itself. Although it can indicate a serious underlying disorder, most of the time, it is not of immediate concern. In some cases, the blood cells in urine are not visible to the naked eye and are...

Introduction An average man ejaculates 1/2 teaspoon to 1 teaspoon of semen. This small amount of semen contains millions of sperm cells. It only takes one sperm to fertilize an egg, but each sperm has a limited life span, which begins once it leaves a man's body.For a couple trying to have a baby,...