Macroglossia is usually caused by an underlying condition, or it could be present at birth without an underlying cause. It should be treated by a doctor.
Beckwith Wiedemann syndrome causes, symptoms, prognosis & treatment
Management of MACROGLOSSIA: Case Series and Suggested Algorithm - ScienceDirect
Long-Term Follow-up With Multispecialty Management of a Giant Lymphangioma of an Infant Tongue Contributed to Reduced Complications of the Disease: A Case Report of a 21-Year Follow-up
Macroglossia Secondary to Primary Amyloidosis of the Tongue
Macroglossia
Why is my Tongue so Large?, Macroglossia Surgical Reduction
Macroglossia: What Is It, Signs and Symptoms, Treatment, and More
Macroglossia & Amyloidosis - Mackenzie's Mission
Angelman Syndrome: What It Is, Symptoms & Treatment
Macroglossia and the disease implications