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Causes of an enlarged tongue?

About 5 years ago I had an amalgam filling removed, due to an allergic response on my tongue (leukoplakia). I also noticed I had a scalloped tongue. The dentist didn't think it was a problem as it didn't cause any issues. I still have this, and although doesn't look bad or cause any breathing issues, I've noticed it recently feels more enlarged than previously (particularly at the back of my throat when lying down) I also have post nasal drip. I have just been diagnosed with hypothyroidism and asked my doctor if it was related. She said it was unlikely and wasn't sure of the cause, but to go back if it continues once I start taking levothyroxine. In the mean time I just wanted to know if there were any other possible causes? In case it helps; I'm normally fit and healthy and have just had a medical MOT showing no issues with diabetes, cholesterol, blood pressure, vitamin B deficiencies.

Female | 41 years old
Complaint duration: 3 months
Medications: levothyroxine
Conditions: hypothyroidism

3 Answers

Some causes include 1) Hypothyroidism 2) Amyloidosis 3) Various Drug or Environmental Allergies. The diagnosis depends largely on the clinical context, i.e. what is going on with you at the time of the tongue swelling. I strongly advise seeing a reputable internal medicine or ear/nose/throat doctor for a complete evaulation.

See an ear nose & throat specialist.
One of the reasons for an enlarged tongue could be amyloidosis.