How does a tongue become sore?

A sore tongue can result from various factors, including irritation from spicy or acidic foods, injury from biting or dental appliances, or infections such as oral thrush. Additionally, conditions like vitamin deficiencies, Allergies, or autoimmune diseases can contribute to tongue soreness. Poor oral hygiene and certain medications may also exacerbate the issue. If soreness persists, it's advisable to consult a healthcare professional for proper diagnosis and treatment.