Loose and unformed stools are usually considered to be a result of spleen yang deficiency.
The spleen is the master of transportation (the spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body), and if the spleen is not healthy and transporting (the spleen’s transportation function is out of order), then the stools will be loose and unformed.
Clinically, if the stools are loose for a long time, with poor appetite, abdominal pain, warmth, fatigue, or coldness in the waist and knees, it is a deficiency of yang in the spleen and kidneys.
Due to the lack of kidney yang, the fate of the fire failure (the body of the kidney yang weakness, warm and promote the function of qi and blood operation is reduced), can not warm the spleen and earth, the spleen is not healthy due to transportation.
If the stools remain loose for a long period of time, it is recommended to seek medical treatment as soon as possible.