Skin is easy to press out marks if it is caused by insufficient skin elastic function, generally normal; if it is caused by localized swelling, generally abnormal. 1. Insufficient skin elasticity: Insufficient skin elasticity is caused by the decrease of estrogen level in the body, the loss of elastic fibers and collagen, and the dryness of the skin, etc. If the local skin is pressurized for too long, and the blood circulation is poor, traces will appear, which is generally a normal reaction. 2. Localized swelling: localized swelling caused by liver and kidney diseases, cardiac insufficiency, standing for a long time and other reasons, there will be blood reflux obstruction, stagnation, after pressing, poor blood circulation will be aggravated, and traces will appear. It is recommended to go to the regular hospital for examination, to clarify the cause of the symptomatic treatment, to develop regular habits in daily life, to avoid prolonged sitting and standing, to exercise properly, and to combine work and rest.