This is Dr. David
how old are you?
1.5mm is quite small.
it is normal to have some small red dots under your tongue.
that is good that it is not sore.
a worried spot would grow in size and be hard.
benign spots in the mouth are soft
is this spot soft? and small? and not tender? it sounds benign and completely normal
have you used oral tobacco before?
Hello from JANot all worrisome spots are going to be large and hard.Things such as leukoplakia are flat and white typically.Only an exam can say if it is a problem or not.Or a picture here and I can take a look.And recommend if you need an exam or not.Cuts happen all the time in this area, not a concern.Changes from allergy and viruses can also occur.Other worrisome spots are ulcerated.Soft v. hard is not an adequate way to tell the seriousness of a spot in this area.Infection is often white.
Or can be a blister.
A herpes blister would typically be painful, break open and form a small ulceration.
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