Tongue Diagnosis │ Sublingual Collaterals
Sublingual collaterals are longitudinal veins located on both sides of the lingual frenulum, primarily reflecting the state of qi and blood circulation. Common abnormal manifestations of the sublingual collaterals include: coarse and long veins resembling a net, varicose veins, and blood stasis in the veins. Normal sublingual veins: Characteristics of the tongue: The sublingual collaterals … Read more
