Purple fingertips may be caused by circulatory disorders, anemia, hypoxia, or cardiovascular disease or respiratory disease. If the symptoms are more serious, it is recommended that patients seek medical attention in a timely manner, and also pay attention to exercise in their lives to promote smooth blood circulation throughout the body.1. Circulatory disorders: Poor peripheral vascular circulation at the ends of the extremities and internal organs may lead to restricted venous return or poor venous return. If the finger veins are blocked or poor reflux, it may lead to the arterial blood supply stagnation in the fingertips, if too much stagnation may appear purple fingertips; 2, anemia, hypoxia: anemia, hypoxia can cause poor peripheral blood circulation, peripheral blood accumulation, which leads to purple fingertips; 3, cardiovascular disease: such as cardiac insufficiency accompanied by congenital heart disease or heart failure patients, may lead to systemic 3, cardiovascular disease: such as cardiac insufficiency with congenital heart disease or heart failure, may lead to systemic blood circulation disorders, and then the fingertips and other terminal parts of the blood accumulation and manifest purple fingertips; 4, respiratory system diseases: chronic obstructive pulmonary disease or lung tumor, interstitial lung disease and other diseases, may lead to patients with reduced lung function, the patient’s body is in a state of oxygen deprivation, resulting in poor blood circulation in the terminal parts, reflected in the fingertips can be manifested as the fingertips purple. In general, any condition that can cause abnormal venous blood circulation will cause purple fingertips. Once a patient has a purple fingertip, it is recommended that he or she seek early medical attention to rule out poor peripheral blood flow due to compression. At the same time, patients with purple fingertips can exercise properly, pay attention to keeping warm, soak their feet every night to promote blood flow, and pay attention to a balanced diet to avoid elevated blood sugar and blood lipids that can lead to sclerosis or blockage of blood vessels and other pathologies.