The formation of sublingual varicose veins is due to microcirculatory disorders in the local blood vessels of the oral cavity. When the pressure in the sublingual veins is too high, the elasticity of the vessel walls becomes poor, thus causing poor blood return, stagnation, deformation and expansion, and often the symptoms of enlargement of the veins can be detected with the naked eye, along with the travel of tortuous veins. Varicose veins at the base of the tongue are very common in normal people and do not require special treatment, nor do they require surgery or incision. Only when varicose veins at the base of the tongue are followed by venous masses that affect eating and symptoms such as bleeding, do they require special intervention, and often sclerosis can be injected to improve the symptoms, and most patients do not require treatment.