Taiyang fu syndrome refers to the syndrome due to failure to relieve taiyang meridian syndrome and transmission of pathogenic factors into the bladder along the meridians. It may be divided into taiyang water-accumulation syndrome and taiyang blood-accumulation syndrome according to the pathogenesis.

Taiyang water-accumulation syndrome:
A syndrome caused by hypofunction of the bladder in transforming qi and accumulation and retention of water due to failure to relieve taiyang meridian syndrome and transmission of pathogenic factors into the bladder.
 
Clinical manifestations:
Fever, aversion to cold, dysuria, lower abdominal distension and fullness, thirst, vomiting after drinking water and floating pulse.
 
Analysis of the symptoms:
Fever, aversion to cold and floating pulse are caused by failure to relieve taiyang meridian syndrome; dysuria and lower abdominal distension and fullness are caused by transmission of pathogenic heat into the bladder and dysfunction of the bladder in transforming qi; thirst is due to retention of fluid and failure of qi to distribute fluid; vomiting after drinking is due to indigestion and adverse flow of gastric qi.
 
Taiyang blood-accumulation syndrome:
This syndrome is caused by internal transmission of pathogenic factors and its mixture with blood in the lower energizer due to failure to relieve taiyang meridian syndrome.
 
Clinical manifestations:
Lower abdominal spasm, fullness or mass, normal urination, mania, deep and un-smooth pulse or deep and knotted pulse.

Analysis of the symptoms:
Lower abdominal spasm or even hard mass is due to improper treatment of taiyang meridian syndrome which leads to transmission of pathogenic heat into the internal and its mixture with blood in the lower abdomen; mania is caused by internal stagnation of heat disturbing mind; normal urination is due to the fact that the disease still remains in blood phase and has not affect the function of the bladder in transforming qi; deep and unsmooth or deep and knotted pulse is the sign of obstruction due to stagnation of heat and inhibited flow of blood.