A bag behind the earlobe, soft may be a lymph node, because there is a normal lymph node behind the ear, probably about the size of a soybean, because the subcutaneous fat layer behind the ear is very thin, so, on the surface of the body to be able to feel a natural lump, it is a normal lymph node, do not need to be treated. If the lump is large, three or four centimeters in diameter, and soft in texture, consider that it may be a lipoma, which is a lump formed due to abnormal growth of subcutaneous fat. Small lipomas can be followed up, but can sometimes be aesthetically displeasing because they are behind the ear after all. If it is a large, aesthetically pleasing lipoma, surgical excision is recommended. Surgical excision can be performed, but it may leave a scar, or it can be performed in a plastic surgery department, where the scar may be slightly more aesthetically pleasing after surgical excision.