Healthy male Wistar rats were prepared as model of precancerous lesion of gastric mucosa. The tongue

pH of tongue surface

dropped cells from tongue fur

histology of tongue. and corresponding gastric mucosa

pH of gastric juice

mucosal histological changes in both groups were observed. Results revealed that

in the rats with precancerous lesion

the tongues were bare or only with little fur

dark purplish tongue with petechia. pH of both tongue and gastric juice were high

which were both coincided with the syndrome type of asthenic gastric - qi and blockage of collaterals by stagnant blood.