From the data of lingual picture and fibroptic colonoscopy in 235 cases of lower GI tract diseases

it was demonstrated that the structural ratio of lingual fur

changes in tongue proper and enteroscopic diagnosis revealed marked difference （P<0. 05

P<0. 01）. In all the groups

most cases had yellow fur

amounting to 79% in the inflammatory group. The tongue proper were mostly darkish red

bluish purple. For cases of cancer

it was greenish purple

revealing marked difference （P < 0. 01） when compared with the normal group

demonstrating that TCM tongue diagnosis was very significant in enteroscopicdiagnosis.