Dr. John P O'dea M.D.

IntroductionDysphagia is the medical term for difficulty swallowing. A person with dysphagia finds it more difficult to move liquid or food from the mouth to the stomach. Dysphagia is most likely caused by muscle and nerve problems. When food is swallowed, multiple muscles and nerves are...

The normal process of aging is the leading cause of cataracts. The eye’s lens slowly loses its clarity and gets cloudy as we age. As a result, the quality of vision decreases. Cataract surgery is recommended when your life’s quality starts to suffer.It is important to know how to prepare...

In the United States, there are currently 30,000 individuals living with cystic fibrosis - a progressive, hereditary condition that results in persistent lung infections and airway obstruction, making it difficult to breathe. There is no cure for cystic fibrosis, although there are several treatment...

Introduction Pyrexia is the medical term for fever, in which the human body temperature rises above the average normal (37 degrees Celsius or 98.6 degrees Fahrenheit). Pyrexia is one of the most common symptoms of numerous medical conditions.There are multiple factors can affect the normal body...

What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...

IntroductionAlthough doctors have the best intentions, it does not always mean that they will perfectly recognize their patient’s greatest need. For this reason, patients also need to take an active role when it comes to communicating with their doctor.One of the best ways to make sure that...