Where does “fire” (excess heat) originate when mouth and tongue ulcers occur?

The mouth is a vital organ in the human body; oral problems cause significant discomfort and directly impair daily life. So, which organ system is “overheated” when mouth or tongue ulcers develop?

Which Organ System Is “Overheated” in Mouth or Tongue Ulcers?

The location of swelling or ulceration on the tongue can help identify which internal organ system is involved. For example, ulcers at the tip of the tongue often indicate excessive heat in the Heart—commonly associated with symptoms such as emotional agitation, restlessness, insomnia, vivid dreams, and dark-yellow or reddish urine. In such cases, medications like Dao Chi Wan (Guiding Redness Pill) or Niu Huang Qing Xin Wan (Bezoar Calming Heart Pill) may be considered. Ulcers along the lateral margins of the tongue typically reflect Liver fire, accompanied by irritability, bitter taste in the mouth, dry throat, and headache; Long Dan Xie Gan Wan (Gentiana Liver-Draining Pill) may be appropriate. Ulcers at the base of the tongue suggest deficiency of Kidney yin leading to ascending deficient fire; Liu Wei Di Huang Wan (Rehmannia Six Formula) may be used. We recommend consulting a qualified healthcare provider before initiating any medication.

There are many causes of mouth or tongue ulcers, including gastrointestinal dysfunction, emotional stress, dizziness, allergic reactions, and endocrine imbalances. Additionally, frequent consumption of foods that irritate or damage the oral mucosa—such as spicy, pungent, or excessively hot foods—can also trigger ulcers. Therefore, cultivating healthy lifestyle habits is essential.

In addition to treating tongue ulcers, patients should maintain good oral hygiene—brushing teeth twice daily and rinsing the mouth after meals. Avoid spicy or otherwise irritating foods, and limit intake of excessively hot or heating foods to prevent local oral mucosal injury. Opt for light, bland meals. Consume plenty of fruits and vegetables rich in vitamins and trace elements, and drink ample water. Maintain a cheerful mood and adopt an optimistic, positive outlook on life; avoid chronic stress or emotional suppression. Ensure adequate, restful sleep. We hope this information proves helpful!