Dr. Marcus H Loo M.D.

Testicular cancer is a form of cancer which affects the male testes or sex glands encased within the scrotum, a loose sac of tissue that hangs freely below the penis. Germ cells are specialized cells lining several heavily coiled tubular structures within the testes that are responsible for...

The ureters are two muscular tubes that collect urine from the kidneys, transporting it to the urinary bladder where urine is temporarily stored before being expelled. Strictures in the ureters represent tough scars in the walls of the ureter that narrow the interior and block the normal flow of...

Herpes blistersThe most obvious symptoms of genital herpes are the appearance of blisters or sores on the genitals. Most people may experience a tingling or itchy sensation before blisters appear on the skin or mucous membranes. This sensation is limited to the area where the lesions will occur....

The testes are a pair of male sex glands located just beneath the penis and is encased in a loose fold of skin - the scrotum, and are responsible for producing testosterone - the male sex hormone, and for manufacturing sperms which are mobile male sex cells. Testicular cancer occurs when some of...

At What Age Does Erectile Dysfunction Normally Occur?Erectile dysfunction affects men across all age brackets. It is possible for men both young and old to suffer from it. However the risks associated with ED increase as you get older. This is because as you grow older, the probability of...

Many people see the reddish or darkish brown coloration in their urine and rush to get a medical opinion, but their fears are usually unfounded. This is because red coloration can be sourced from factors other than red blood cells. It may be originating in the kind of food or medicine you are...