Dr. David Donghan Lee M.D.

Recommended Articles

• What Is Pyrexia: Causes, Symptoms, and 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...

• Croup in Adults

  Croup is a very common respiratory infection in children, but it can also occur in adults. It can occur at any point and is quite infectious since the virus is often being dispersed through the air, which causes the infection to spread to others. Although rare, croup can also be caused by bacterial...

• Is it Lung Cancer or COPD?

  Chronic Obstructive Pulmonary Disease (COPD) and lung cancer are two ends of the same spectrum. Though vastly different in core characteristics, they share many symptoms such as painful wheezing, a persistent cough, and the production of copious mucus. Both these diseases have similar causes and...

• Polydipsia: What Causes Excessive Thirst?

  What is polydipsia?Polydipsia is a medical term given for extreme thirstiness. It is said to be one of the initial symptoms of diabetes. Polydipsia is also accompanied by either temporary or constant dryness in the mouth. It is very important to consume adequate amounts of water in a day, so that...

• What Is Leukopenia: Symptoms and Causes

  What is leukopenia?Leukopenia is a condition in which abnormally low white blood cells are circulating in the blood. This condition can be diagnosed using a blood test called complete blood count (CBC). A normal white blood cell count is usually between 3,500-11,000 WBCs per microliter. People...

• The Human Heart: Function, Chambers, and Location

  IntroductionThe human heart is a part of the cardiovascular system that is situated in the middle of the chest between the lungs. Its exact location is slightly positioned to the left and behind the sternum (breastbone). The size of the heart is approximately the size of your fist. Its function...