Dr. David L Cheng M.D.

Recommended Articles

• Your Guide to Using Valtrex

  Valtrex is the name of the drug that contains valacyclovir. It is prescribed for many infections caused by the herpes virus, which includes cold sores, genital herpes, and shingles. Herpes virus can appear on any part of the body, but most often, it shows in the genitals and mouth. There are two...

• 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 a Prostate Biopsy?

  A prostate biopsy is a surgical procedure that is used to remove a sample of a suspicious tissue from your prostate for further examination analysis. The prostate is a tiny, walnut-shaped gland found in men's reproductive system. This gland's major function is to produce a fluid that nourishes the...

• What are the Signs and Symptoms of Testicular Cancer?

  Cancer is an unhealthy condition in which the cells of a part of the body rapidly divide and thrive without an apparent cause. These abnormally growing germ cells clump together, forming a buildup of tissue called a tumor that sets it apart from normal healthy tissue. When this happens in the...

• What are the Treatment Options for Syphilis?

  What is syphilis?Syphilis is a very dangerous disease if not diagnosed early and treated with proper medication. Worse, it may even lead to death. Syphilis is caused by the bacterium Treponema pallidum and has four stages in its pathogenesis. It is one of those diseases which does not have typical...

• How Is Bladder Cancer Diagnosed?

  In case you have symptoms of bladder cancer such as the presence of blood in the urine, you should see your doctor immediately. Your doctor will use many tests to possibly diagnose a bladder cancer and will also find out how far it has spread. Sometimes, bladder cancer may have spread to other parts...