Dr. John William Davren M.D.

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• What Do Tonsils Look Like?

  Introduction Tonsils are a pair of lymphoid tissues that are located at the back of the throat. They belong to the lymphatic system and help fight infections. Normally, they are pinkish in color. However, sometimes, tonsils become enlarged, red, and irritated when they get infected.When they are...

• Mesenteric Adenitis: Symptoms, Causes, and Treatment

  Introduction Mesenteric adenitis is the inflammation of the lymph nodes present in the mesentery, which is the membrane that attaches the small intestine to the abdominal cavity wall. It usually causes abdominal pain, especially in children and teenagers. Lymph nodes contain lymphocytes, which are...

• 5 Tips on Living with Lung Cancer

  Lung cancer, also known as lung carcinoma, is a malignant lung tumor depicted by uncontrolled cell growth in tissues of the lung. If left untreated, this growth can spread beyond the lung by the process of metastasis into nearby tissue or other parts of the body.The following are 5 tips on...

• Yawning Scientific Facts: Why Do We Yawn and Is It Contagious?

  What is yawning?Usually, yawning is associated with boredom, fatigue, and tiredness. Yawning is also very common in animals, such as dogs, monkeys, snakes, and carnivores. Yawning is also associated with numerous superstitious beliefs.In humans, yawning is considered as a purposeful non-verbal...

• The History of Rheumatoid Arthritis

  Introduction Rheumatoid arthritis causes inflammation of the joints and other body areas. It is an autoimmune disease and its symptoms include:...

• What Is Chronic Urticaria?

  IntroductionUrticaria is also known as hives, which are itchy and red welts that can be triggered by certain situations or substances. These welts may vary in sizes. They tend to repeatedly appear and fade away as the skin reaction runs its course. Each of these welts is said to characteristically...