What are the black veins under tongue?
Robert Clark
Published Jan 07, 2026
Sublingual varices
Sublingual varices are clinically characterised by small dilated veins under the lateral borders of the tongue. Their pathogenesis may be due to a change in the connective tissue or weakening of the venous wall, as a result of degeneration of elastic fibres related to the ageing process [3–5].
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Should you have black veins under your tongue?
Veins under tongue: It is normal to have darkened looking veins under the tongue. Also to have small bumps. Now, let us focus a little more on purple under tongue since it is a more common problem. Veins are normally visible underneath (ventrally) the tongue since the mucous membrane is so thin and translucent.Why are the veins underneath my tongue black?
It is normal for there to be veins visible underneath the tongue, partly because the mucous membrane is so thin and translucent in this region, but where these vessels become dilated and tortuous, they may appear round and black like caviar.What color are the veins under your tongue supposed to be?
Veins are normally visible underneath (ventrally) the tongue since the mucous membrane is so thin and translucent. However, with caviar tongue, the blood vessels become dilated and tortuous and appear round and black (resembling caviar).What color should under your tongue be?
A healthy tongue is typically pink in color, but it can still vary slightly in dark and light shades. Your tongue also has small nodules on the top and bottom.Art of Ayurveda Tongue Diagnosis 6 of 9: Under the Tongue / Sublingual Veins
What does a normal under tongue look like?
A healthy (or normal) tongue is pink and covered with small bumps known as papillae. The shade of pink can vary (provided it's not red), and the bumps should cover a good majority of the upper surface. These bumps are also on the underside of a tongue, but maybe less easy to spot.Is it normal to have veins in your mouth?
Oral varices are dilated veins that presumably develop due to loss of connective tissue tone of the vascular wall. They generally begin developing after 40 years of age and are found commonly in older adults. They are not associated with hypertension or cardiopulmonary diseases.Is blue under your tongue normal?
Blue or purpleThe spots are caused by stray particles from the silver and are painless and benign. However, a blue or purple tongue could be due to poor oxygen circulation or a blood disorder. Enlarged blood vessels under the tongue are common in older adults and may cause a blueish hue.