Does ibs cause tender lymph nodes on left side of lower abdomen? i have a tender bump which im assuming is a lymph node and its tender to touch. only started a few days ago. my bowel hurts around it too sometimes. is that ibs too or something else?

Since IBS is not an inflammatory disorder, there should be no lymph node reactivity from it. A rather superficial lump in the abdomen wouldn't be a lymph node. Left lower abdominal pain & tenderness is seen in sigmoid diverticulitis. I think you should have an examination of your abdomen. by a physician in view of the presence of tenderness and a.lump.