Acrocyanosis is a symptom that is manifested by an unhealthy shade of skin color and pallor of the hands and feet, which occurs with superficial stagnation of venous blood. Most often, symptoms are observed on the fingers and palm of the left hand. Cyanosis may also spread to the feet and legs. In the facial area, acrocynuosis can spread to the nose. The condition is caused by the presence of blood in the vessels, as blood flows from the arteries to the veins (the normal functioning of cells occurs due to the presence of oxygen in the blood, rich in hemoglobin). Cyanosis and a decrease in the oxygen capacity of the blood lead to pale skin, a feeling of cold, chilliness and discomfort. The brightness of the color due to lack of blood circulation is smoothed out against the background of general pallor, the color of the limb becomes pale blue. Often acrocinosis is accompanied by a disease of asthenic constitution or allergic reactions.