Dr. Julian Hsin-cheng Wan MD

It is mostly the detrusor muscle that forms the wall of the bladder, it contracts during urination and relaxes to hold the urine. The muscle is continuous at the inferior end with the internal urethral sphincter. Urination results when the detrusor muscle contracts and the urethral sphincter muscle...

What is a urologist?A urologist is a doctor who specializes in the diagnosis and treatment of urinary tract diseases in both men and women. Urologists also deal with any problems involving the male reproductive system. They also perform surgery in some cases, such as opening up a urinary tract...

Urinary incontinence is common with aging and may range in severity from mild to severe wetting. For many people, there is a sudden urge to urinate frequently. There are millions of people affected by incontinence in the country, but many people have different variations of this condition. This...

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,...

Kidney stones come about from an infection that leads to formation of stone-like structures in the kidney. Kidney stones are made up of different materials, mostly being acidic salts and minerals filtered from the blood by the kidney. These minerals, once filtered from the blood, fail to dissolve...

The presence of blood in the urine could cause anxiety. Although there are cases where the cause is actually not a cause of concern, some cases may also indicate a serious condition.Blood in the urine is known as hematuria. The blood that you can see with your naked eye is referred to as gross...