16 Causes & Triggers of Scalloped Tongue You Shouldn’t Ignore (List)

Riboflavin Deficiency

Riboflavin is a water-soluble vitamin in many foods, including meats, dairy products, vegetables, and grains. It’s an important part of the electron transport chain and helps the body convert food into energy. Riboflavin is also necessary for proper red blood cell formation and supports a healthy immune system.

A deficiency in riboflavin, also known as vitamin B2, can cause many symptoms. One of the most common and easily recognizable symptoms is scalloped tongue. The indentations can vary in depth and maybe deepest in the center of the tongue. In addition, the indentations may be more pronounced on one side than the other. In some cases, a scalloped tongue may be accompanied by other symptoms such as bad breath, dry mouth, difficulty swallowing, or a burning sensation on the tongue. Riboflavin deficiency can also cause cracks at the corners of the mouth, sore throat, fatigue, and headaches.

A scalloped tongue usually does not require treatment. However, in case of discomfort or pain, doctors may recommend using a topical antifungal or antibacterial agent. Vitamin B2 supplements may also be recommended if doctors suspect the presence of riboflavin deficiency.