<s>[INST] I have had a lump in my lower right jaw line for awhile now, I can move it around with my fingers. Its around the size of a small jelly bean and is hard. It doesnt hurt or bother me at all but wonder if I should be concerned. What could it be, and should I have it looked at? [/INST] Hi. Welcome to Chat Doctor . I have gone through your query and can understand your concerns. As per your complaint a small moveable lump under the jawline is a swollen lymph node, and it is commonly due to Infection in the regions Chat Doctor. . For the lymph nodes under the jaw line which is sub-mandibular group of lymph nodes, the lymphadenopathy can be due to infection in the head and neck region like teeth and gums, ear, throat, infections in mouth, nose etc. At times infections in distant regions cause swelling and infection in distant lymph nodes. You should consult a physician and get evaluated and in case of infection antibiotic course can resolve the swelling. In case the swelling does not subside even after treatment or in case if there is no pathology found in any part of body a Biopsy has to be done to rule out for any malignant condition sprouting in the lymph node known as LYMPHOMA. Hope this information helps. If you find the answer helpful please give me a Five-Star Review and click on found the answer helpful as a token of appreciation. Thanks and regards. </s>