Heart purple is due to peripheral circulation due to ischemia, can be seen in the following cases: 1, respiratory diseases: respiratory diseases such as bronchitis, pneumonia, chronic obstructive pulmonary disease, etc., can lead to ventilation dysfunction, which leads to a reduction in the amount of oxygen into the bloodstream, the reduction of oxygen content in the blood and the hemoglobin combined with hemoglobin oxygenated hemoglobin content will be lowered, which will make the palms of the hands, lips, nail beds and other places was purple, 2, heart disease: various heart diseases such as cardiac hypertrophy, myocardial ischemia, etc., can lead to poor heart pumping function, thus reducing the blood supply to the endings, endings ischemia leads to purple palms. 3, vascular disease: such as atherosclerosis of the limbs, thrombophlebitis, etc., which can make the blood vessels narrowed, the endings of the blood supply is not enough to cause hypoxia. 4, the cold: cold environment can make the blood vessel Shrinkage leads to poor peripheral circulation, such cases of purple palms can be improved after entering a warm environment. If it is not due to the fourth situation of purple palms, it is recommended to go to the hospital in time.