Vertical lines on the earlobes may be caused by age, excessive weight loss or coronary heart disease. 1. Older: mostly seen in the elderly population, due to the rise in age, skin laxity leads to the appearance of vertical lines on the earlobes, which is a phenomenon of natural aging of the human body. 2. Excessive weight loss: some people have recently lost weight excessively, strict control of food intake, malnutrition occurs, the earlobe surface of the adipose tissue is obviously reduced, manifested as vertical lines on the earlobes, accompanied by the reduction of fat in other parts of the body, some of which may appear vertical lines. 3. coronary heart disease: earlobes on the vertical lines may also be abnormal cardiovascular function, the whole body tissues and organs need heart coronary artery blood injection, to ensure the normal functioning of the organs, if there is a vertical line on the earlobes, may be the earlobes of the blood supply abnormalities belonging to the coronary heart disease, myocardial ischemia and other heart diseases. If there are vertical lines on the earlobe, it is recommended to closely observe, abnormalities, timely medical treatment, follow the doctor’s instructions for standardized examination and treatment.