Small intestine lymphoma occurs when non-Hodgkin’s lymphoma affects the small intestine. It can cause abdominal pain, weight loss, and fever. Treatment involves chemotherapy, surgery, or radiation ...

Mesenteric ischemia, or small bowel ischemia, involves a blockage of blood flow to the small intestine. Symptoms include pain and bloating. It often results from blood clots or atherosclerosis.

Janelle McSwiggin is a registered nurse with five years of bedside experience supporting public health measures in her community. Janelle has been a writer and editor for social media content, ...

Stomach ulcers, or peptic ulcers, are sores in the lining of the stomach or the top part of the small intestine. Stomach ulcer pain often occurs in the upper part of the abdomen. Doctors classify the ...

Gas, indigestion, and stomach viruses are common causes of upper stomach pain. In more severe cases, it can indicate appendicitis, bowel obstruction, or peptic ulcers. Not all pain feels and acts the ...