Cyanosis is a manifestation of cyanotic changes in the skin and mucous membranes due to an increase in the amount of reduced hemoglobin in the blood, which can also be called cyanosis. This change often occurs in thin, less pigmented and capillary-rich areas of the skin, such as the fingers (toes), nail beds and so on. Cyanosis of the extremities is most common in young women. Acute anemia and neurogenic shock can also cause cyanosis of the extremities. Cyanosis prevention and health care methods For newborns, oxygen therapy should be given promptly. Cyanosis indicates a lack of oxygen in the body, which may cause damage to the brain, heart, kidneys, lungs and other vital organs of newborns, thus affecting their intellectual and physical development. At home, oxygen generators can produce oxygen to meet the newborn’s need for oxygen. However, it is important to choose absolutely safe instruments and equipment, and the oxygen generator should be free of any side effects. The use of home oxygen generator wins time for the rescue of newborn’s hypoxia and avoids irreversible damage to organ development and intellectual development due to long time of hypoxia. When caring for newborns, attention should be paid to keep warm, keep the airway open, and prevent milk and vomit from choking into the trachea.