Researchers found that some patients suffered increased salivation after a piercing, while others suffered nerve damage and speech impediments. Swelling of the tongue is a common side effect.

A swollen tongue may signal allergies, deficiencies, infections, or deeper health issues you shouldn't ignore.

Tongue piercings are maintained with straight barbells, and are initiated anterior to the lingual frenulum at the midline. Extreme swelling can occur as part of the inflammatory response ...