Enlarged under-jaw glands, or lymph nodes, are usually the result of bacteria or viruses, according to Mayo Clinic. In rare cases, swollen lymph nodes are caused by certain cancers. Doctors diagnose the cause of swollen ... More »

The cause of a small lump on the right side of an individual's neck right underneath their jaw is likely a swollen lymph node, according to WebMD. In most situations, swollen lymph nodes are not a cause for concern and t... More »

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Painful, swollen lymph nodes can have many causes, including various types of bacterial infections, viral infections, disorders of the immune system and several types of cancers, suggests WebMD. To determine the cause of... More »

Chronic watery diarrhea is often caused by viruses, bacteria or parasites from contaminated water or food and medications, such as antibiotics that disturb the intestines' balance of bacteria, explains Mayo Clinic. Peopl... More »

Intestinal gas occurs naturally as the result of bacteria breaking down food in the intestinal tract, but it can also be caused by swallowing air or eating certain foods, as stated by Mayo Clinic. Excessive gas may be ca... More »

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The glands, or lymph nodes, in the neck swell when the body is fighting off an illness or an infection, such as cold or sore throat, according to WebMD. Lymph nodes can also swell in response to an injury or a bug bite, ... More »

Swollen lymph nodes commonly cause neck lumps in the glands of the neck, explains MedlinePlus. This is due to viral or bacterial infections, colds or sore throats, according to WebMD. Other causes of neck lumps include c... More »