Crohn's disease is a chronic inflammatory bowel disease that is sometimes insufficiently controlled by immunosuppressive therapies with a subsequent need for surgical removal of affected bowel ...

Among the range of uncomfortable symptoms, swollen lymph nodes tend to spark feelings of dread. They can become quite large, feel tender to the touch, and signal a wide variety of illnesses, from ...

Lymph node metastasis occurs in "metastatic" lymph nodes, lymph nodes that have been infected by cancer from elsewhere in the body. A part of the immune system, lymph nodes are tiny ovals placed ...

Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny nose, congestion, coughing, wheezing, ...

The condition is becoming more common as immunization rates increase. Experts are suggesting ways to ease patients’ fears and avoid needless testing. By Denise Grady Coronavirus vaccinations can cause ...

Studies have shown that gut bacteria can impact the effectiveness of cancer treatments, but reports have not agreed on which bacteria provide the most benefit or what the ideal composition of the ...