Heart blood asthenia syndrome is caused by asthenia of heart blood and lack of proper moisture and nourishment of the heart. This syndrome is caused by weakness of the spleen in producing blood, or by excessive loss of blood, or by lack of proper nursing in chronic disease, or by consumption of heart blood.
 
Clinical manifestations:
Palpitation, dizziness, insomnia, dreaminess, amnesia, pale complexion or sallow complexion, pale lips and tongue as well as thin and weak pulse, seen in various haemorrhagia, disturbance of blood production and anemia due to various chronic and consumptive diseases.
 
Analysis of symptoms:
Palpitation is due to insufficiency of heart blood, lack of proper nourishment of the heart, and irregular heart beating; insomnia and dreaminess are due to failure of blood to nourish the heart and anxiety; dizziness, amnesia, pale or sallow complexion as well as light whitish lips and tongue are due to failure of asthenic blood to nourish the head and face; thin and weak pulse is due to insufficiency of blood in the vessels.

Key points for syndrome differentiation:
The syndrome is marked by palpitation, insomnia, dizziness, pale or sallow complexion, light whitish lips and tongue due to failure of deficient blood to nourish the body.