A hard lump in the earlobe may be caused by sebaceous cyst, boil, lipoma, etc., and you should consult a doctor in time to clarify the cause of the problem.
1. Sebaceous cysts: When the sebaceous gland ducts in the skin of the earlobe are blocked, causing sebum accumulation, a hard lump with a clear boundary will appear on the earlobe, i.e. sebaceous cyst, which may be infected by bacteria and have localized redness and swelling, and will be removed under the guidance of a doctor in the non-acute stage.
2. Boils: a hard lump on the earlobe may also be caused by a boil due to Staphylococcus aureus infection, and such people will also have redness, swelling and pus in the earlobe.
3. Lipoma: benign proliferation of fatty tissue in the earlobe can also cause a hard lump on the earlobe, mostly without other symptoms.
When you find a hard lump on your earlobe, you need to actively seek medical treatment and systematic examination to make a clear diagnosis.