Dr. Elizabeth Hechavarria Yen 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...

How long can gastroenteritis last?Gastroenteritis is an intestinal infection that causes diarrhea, vomiting, fever, and sometimes back pain. It is caused by germs and bacteria from poorly cooked food and contaminated water. You can also get it from food poisoning. The condition does not warrant...

What is a Hernia?A hernia is a medical condition that results from tissue or organs protruding through the abdominal walls. This protrusion is due to a weakness or hole in a muscle. The condition might start without any symptoms, but can lead to serious problems like death if left unattended. Hernia...

Spit out what they have just been fed; this is known as reflux or posseting. This is not vomiting. It is important to learn the difference between vomiting and reflux. In vomiting, the muscles contract to forcefully expel the contents of the stomach, whereas in reflux, it is a spontaneous expulsion...

Diarrhea is a very common water-borne disease. A person who has diarrhea passes loose or liquid stool at least three times a day or more frequently than what is normal for the person. The reason behind the consistency and frequency of these bowel movements in a case of diarrhea is the increased flow...

Harvard Medical School and Massachusetts General Hospital are currently recruiting 250 infants to participate in their new study that plans to look at the various factors that affect celiac disease's development. For more information or to participate, visit www.cdgemm.org.There have been a...