Dr. David P. Johnston M. D.

Recommended Articles

• Stomach Ulcers: What are the Causes, Symptoms, Diagnosis, and Treatment?

  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...

• Everything You Need to Know About Biopsy Procedures

  What is a biopsy?A biopsy is a medical procedure, which is mostly used in diagnosing cancer. In this procedure, a small tissue sample is taken from your body for a closer examination under the microscope. A biopsy is usually recommended by your doctor if initial tests in your body suggest an...

• Hydrocephalus: What Is It?

  Hydrocephalus is a condition where there is too much cerebrospinal fluid in the head. It comes from the Greek words “hydro”, which means water, and “cephalus”, which means head. It is a component of several congenital health problems, but may be caused by head injuries, too. In some cases,...

• What Is the Epiglottis?

  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...

• Understanding Hernia and Hernia Surgery

  Feeling pain and swelling in the groin region can be a very unpleasant experience, especially when the pain gets worse when you cough or lift heavy objects. Experiencing these symptoms might signify the presence of groin hernia. A groin hernia is usually referred to in medical terms as an inguinal...

• What are Cataracts: Get the Facts

  Cataract is the blurring of the lens part of the eye that can lead to complications in vision. Aging is the cause of the common form of cataract. It grows slowly and should symptoms develop they should not be ignored as this condition worsens with time. Congenital defects, previous eye surgery,...