Islet microcirculation disorder is a key pathological part of glycemic excursion in diabetic patients.Chinese medicine believes that blood sugar is the essence transformed from diet

the dysfunction of spleen qi to disperse essence will cause blood sugar and subtle substances failing to transport five zang and six fu viscera. The acculturation is harmful

blocking meridians and collaterals

and affecting upward and downward

as well as leading to the occurrence and development of diabetes. Through tonifying the spleen deficiency

unblocking the spleen collaterals could improve the functions of the spleen qi to disperse essence

improve the islet microcirculation disorder

and thus reduce glycemic excursion.