Submucosal Fibrosis is a condition where due to chronic irritation factors leads to inflammation of tissue underlying the epithelium (Submucous) inflammation results in fibrosis. Symptoms repeated ulceration of mouth, xerostomia (dryness of mouth), burning sensation and difficulty and restricted mouth opening.
Black Hairy Tongue (Covid) Causes and Treatment.
Black hairy tongue typically results when projections on the tongue called papillae grow longer because they don’t shed dead skin cells like normal. This makes the tongue look hairy.