Dr. William N Castle MD

Recommended Articles

• What Can Cause Blood in Urine (Without an Infection)?

  Blood in urine is a symptom that does not typically appear on its own, and is generally a sign of an underlying problem. It is important to understand that the cause of blood in urine is not always infection. There are multiple causes for this, some more serious than others. Possible causes of blood...

• What's a Micropenis?

  A micropenis is a penis that is smaller than an average human penis size. It is smaller than 7 cm or 2.7 inches when erected or smaller than 4 cm or 1.5 inches when flaccid, which is actually two and a half times smaller than the average penis.It affects about 0.6 percent of men, so it is a very...

• What is Hydrocele?

  Hydrocele is a medical condition in which the scrotum becomes swollen because of buildup of fluid in the processus vaginalis. It is an uncomfortable situation that if left as is could disappear on its own (in the cases of one-year-olds and below), but should be dealt with in time to reduce the...

• Syphilis: How Does It Affect Men and Women?

  Syphilis is a sexually transmitted disease that affects both men and women. The most common locations for the chancre to appear are in the penis, vagina, anus, and even in the oral cavity. There is not much difference in men and women as far as symptoms, diagnosis, and treatments are concerned....

• Does Blood In Urine Mean There Are Cysts In My Kidneys?

  In the normal course, blood has no place in the urine. But Hematuria or blood in the urine is a clear indication that we are confronting a larger problem somewhere in the urinary or genital systems. It could indicate the presence of a renal cyst, although a cyst is by no means the only contributing...

• What Is Ureaplasma?

  Ureaplasma is a small bacterium that belongs to the class Mollicutes. This group of tiny bacteria lacks cell walls and are regarded as the smallest self-replicating and free-living cells, making them unique from other types of bacteria. Although the infection it causes can be treated using...