Dr. John N Udall M.D.

Mesenteric adenitis, also called as mesenteric lymphadenitis, is a condition that causes swelling and inflammation in the abdominal lymph nodes. This condition usually affects children and adolescents.Lymph nodes are small glands that are part of the lymphatic system. They contain a type of white...

What is a stomach flu?Gastroenteritis, also known as the "stomach flu" or "gastric flu", is the inflammation of the lining of the stomach and intestines. It is usually caused by a virus attacking the gastrointestinal system, although it can also be brought about by bacterial or parasitic...

Food allergies are considered normal in modern society especially among children and infants, yet there are instances in which an individual can have a serious issue with consuming certain food products. These reactions are not always considered allergic reactions, and they can leave an individual...

With the rise of celiac disease and other problems related to gluten, finding out just what can cause it and how it has risen alludes even the best of researchers. Knowing the key differences between celiac disease and other gluten issues is a step for better understanding and management of the...

The beginning of a new school year is an exciting time for students and parents alike. Many students look forward to meeting up with friends and sharing about their summer vacation adventures. Also, there’s the prospect of meeting new teachers and learning more about the world around them as well...

Have you ever wondered why your child has difficulty in gaining weight, or maybe he or she is not gaining weight at all? Does your child experience abdominal pain, bloating, or even diarrhea when they eat foods with wheat, barley, rye, and the like? Is your child always weak and sickly? If he or she...