The hard lump in the earlobe after ear piercing may be caused by infection and pus, scar proliferation. Early for the infection of pus, usually because of water or premature removal of the nail, to the hospital in time to drain the pus, and then anti-infection treatment. Usually pay attention to the ears do not get wet, do not often touch. The hard lumps that appear in the earlobe area after late piercing are commonly due to scar tissue, and scar tissue hyperplasia will appear as hard lumps, so you can apply hot compresses on the surface of the lumps to promote blood circulation to make them smaller. Keloid tissue formation is commonly known as keloid, which can usually be treated with local injections of medication, such as triamcinolone acetonide + fluorouracil; or surgical excision followed by local radiation therapy. If the hard lump in the ear causes discomfort, it is important to go to the hospital in time for treatment.