A hard lump in the earlobe is not necessarily cancer, and the chances of cancer occurring in this part of the body are very small. Hard lumps in the earlobe may be caused by sebaceous cysts in the earlobe, keloid scars such as ear piercings and so on. 1. If there is cancer in the earlobe, the patient may have a short-term rapid growth of the lump, and often accompanied by pain in the surrounding tissues, skin erosion, oozing and other symptoms. 2. Sebaceous cyst of earlobe is mainly caused by the obstruction of sebaceous gland excretory ducts in the earlobe skin, which leads to the abnormal function of sebaceous gland secretion. In the early stage, there is no obvious symptom, only when touching can feel a hard lump, generally do not need to deal with; if accompanied by pain or due to infection. 3. Ear piercing can also appear in the earlobe hard lumps, mainly because the patient is caused by keloid, smaller keloid can be observed dynamically, hyperplasia obvious need for surgical treatment, some need to be supplemented with a small dose of radiotherapy. Other conditions can also lead to hard lumps in the earlobe, it is recommended that the patient consult a doctor in a timely manner to exclude the factors of cancer, and then under the guidance of the doctor to carry out the appropriate treatment.