The normal color of the sublingual vessels is red or pink, but some elderly people may have age-related changes, such as bruising of the tongue and abdomen of the sublingual veins, and blue-purple dilated veins can be seen on the abdomen of the tongue, and there can be elevated or strings of dilated veins on the edge of the abdomen of the tongue, which can be discolored by pressure. This is mainly due to some middle-aged and elderly people’s reduced respiratory function, hypoxia, reduced hemoglobin increase, or compensatory red blood cell increase after hypoxia, which can be manifested as sublingual varicose veins. Traditional Chinese medicine diagnoses this as bruising pain, and the diagnosis is blood stasis after a long illness, which are some of its clinical manifestations. Generally this disease can be left untreated if there are no obvious symptoms in the oral cavity. However, if there are other diseases, such as lung diseases or some systemic diseases, the primary lesion should be treated. When gargling or doing the corresponding oral treatment, care should be taken to avoid accidental injury that may cause slightly severe bleeding. Usually this bleeding can be stopped, but it will cause some trouble to the patient, so it is necessary to make a relevant explanation and instructions to the doctor before treatment.