Dr. Stanley C Yuan M.D.

Stomach ulcers are painful lesions that are found in the lining of your stomach or small intestine. They are the most visible sign of peptic ulcer disease. Your stomach and small intestine are lined by a layer of mucus-producing cells. The mucus produced by these cells protect the lining of your...

A vein is a blood vessel that carries blood through your body. Varicose veins are one among a spectrum of chronic vein problems. It is common and can be found in up to 20% of the adult population. The severity of the condition varies and while varicose veins are responsible for significant...

A tonsillectomy is mostly carried out as an outpatient operation, where the patient is allowed to go home on the same day after the surgery. However, a one-day hospital stay is recommended if complications occur after the operation and if the patient has a minor or complex medical...

What is laparoscopy?Laparoscopy is a common procedure used for diagnosing and removing mild to moderate endometriosis. The surgeon puts a small viewing instrument known as laparoscope through a small abdominal cut. If more access is needed, the surgeon makes a small cut or two on the abdomen to...

The appendix found in the human body was long the subject of debate among doctors all over the world in their journals and reviews. However, very few of these debates have turned out to be worthy of serious consideration because the majority of doctors have conceded the fact that the appendix serves...

What is Epiglottis?Epiglottis is a elastic flap of tissue that is shaped like a thin leaf and situated at the root of the tongue. It protects the opening between the vocal cords, known as the entrance of the glottis. Epiglottis is covered with mucous membrane, which is a yellow elastic cartilage...