The causes of sublingual veins usually include normal physiological phenomena, poor venous blood flow, etc. Once found, it is necessary to seek medical treatment in a timely manner.
1. Sublingual veins usually refer to the blood vessels under the mucous membrane of the tongue. Due to the thin mucous membrane under the tongue, the veins can usually show a green color through the mucous membrane, and the depth of the blood vessels varies from person to person, so the performance of the veins of each person is different, but it is a normal physiological phenomenon.
2. This phenomenon is usually associated with poor venous blood circulation, which leads to greater pressure on the veins under the tongue, which in turn leads to poor blood reflux easily causing sublingual varicose veins or sublingual veins to bulge, and sometimes form a certain bifurcation phenomenon, the so-called sublingual vein bifurcation phenomenon.