Firstly weather its painful or not is important, if painful and present over number of regions needs to be thoroughly examined, if non pain painfull it could be
lipid deposit, if painful and present over specific areas like arround neck at collar line or at elbow, or hip could be muscular trigger point.
Next Steps
its better to get once atleast assessed by competent GP, general surgeon, or a physio..
Health Tips
act according to there suggestions