Redness and swelling under the tongue started 2 days back. Tongue underside looks greyish and looks dark than before. Is this normal? details in comment. - Quora
Ranula: Plunging, Cyst, and Surgery
Sub-mucosal swelling | British Dental Journal
Swelling Related to Ranula Under The Tongue | Swelling Related to Ranula Under The Tongue - Kazemi Oral Surgery | Facialart.com
When That Pain in Your Mouth Is a Salivary Stone – Cleveland Clinic
Warning Signs Your Tongue Could Be Sending About Your Health