Many people will say they are experiencing "Internal Heat" (Shang Huo) as soon as they suffer from a sore throat, mouth ulcers, acne breakouts, dry mouth, insomnia, or irritability. However, from a TCM perspective, "Internal Heat" is not a formal disease name, but rather a colloquial term for the body's manifestation of heat-related imbalance. It may belong to Excess Fire (实火), or it may be Deficiency Fire (虚火), and sometimes it is complicated by Damp-Heat (湿热) or manifests as Zang-fu Organ Fire (脏腑之火). Therefore, the key is not to blindly "clear the heat" (降火), but to first distinguish the nature of the fire before deciding how to condition the body.
How does TCM understand "Fire"?
TCM believes that the human body naturally requires Yang Qi to warm and propel physiological functions. If external pathogens enter the interior and transform into heat, dietary accumulation generates heat, emotional stagnation transforms into fire, or chronic late nights and overwork lead to a depletion of Yin fluid, the manifestations of "Fire" will appear.
Therefore, the "Fire" in TCM is not simply feeling physically hot, but rather an imbalanced state where the body is leaning towards heat, hyperactivity, upward disturbance, or the depletion of body fluids. Furthermore, it is necessary to identify where the fire originates; coming from different Zang-fu organs, the manifested symptoms will also vary.
Common clinical fire pathogens include:
Excess Fire, Deficiency Fire, and Zang-fu Fire
Excess Fire (实火)
Excess fire mostly belongs to a hyperactivity of heat pathogens; it usually comes on quite urgently and the symptoms are more obvious, commonly seen after staying up late, consuming spicy and fried foods, drinking alcohol, experiencing high stress, or after externally contracting wind-heat.
Common manifestations:
- Sore throat
- Mouth ulcers
- Swollen and painful gums
- Heavy breath (bad breath)
- Increased acne breakouts
- Constipation
- Yellow urine
- Red tongue with yellow coating
If accompanied by a feeling of heaviness in the body, abdominal bloating, a bitter taste in the mouth, greasy skin, and excessive vaginal discharge, it is highly likely to be complicated by Damp-Heat.
Deficiency Fire (虚火)
Deficiency fire is mostly seen in Yin deficiency with hyperactive fire (阴虚火旺). The "Yin" in TCM has the function of nourishing, moisturizing, and restricting Yang heat. If Yin fluid is insufficient, symptoms of deficiency heat are prone to appear.
Common manifestations:
- Dry mouth and throat, more pronounced at night
- Light sleep, prone to insomnia
- Night sweats
- Irritability and restlessness
- Heat in the palms and soles
- Feeling hotter in the evening or at night
- Red tongue with little coating
Deficiency fire is not "too much fire," but "insufficient Yin," so one cannot blindly clear fire just because they see heat symptoms.
Zang-fu Fire (脏腑之火)
TCM identifies the location of the fire based on the Zang-fu organs. Fire in different organs presents differently, for example:
- Heart Fire: Irritability, mouth and tongue sores, insomnia
- Liver Fire: Impatience and irritability, headache, red eyes, bitter taste in the mouth
- Stomach Fire: Swollen and painful gums, bad breath, constipation
- Lung Fire: Dry throat, cough, dry nose
- Kidney Yin Deficiency with Hyperactive Fire: Dry mouth, night sweats, heat in the palms, soles, and chest (five-center heat)
How to preliminarily judge if you have "Internal Heat"?
If you experience a sore throat, mouth ulcers, acne, constipation, or a bitter taste and bad breath within a short period, it mostly leans towards Excess Fire or Damp-Heat. If you experience chronic and recurrent dry mouth, insomnia, night sweats, irritability, and nighttime fever, especially accompanied by a red tongue with little coating, you must consider whether it belongs to Yin deficiency with hyperactive fire.
However, please note that you cannot jump to conclusions based solely on one or two symptoms. Many people do not just have a single type of fire, but a mixture of heat, dampness, deficiency, and stagnation intertwined; it still requires a professional TCM physician to make a judgment through pattern differentiation (辨证).
Why is it easier to repeatedly get "Internal Heat" in Singapore?
Singapore has a hot and humid climate; coupled with staying up late, high stress, and frequent consumption of spicy, fried foods and sweet drinks, the body is more prone to Excess Fire and Damp-Heat. Prolonged lack of sleep and overwork can also gradually deplete Yin fluid, forming Deficiency Fire. This is also why many people in Singapore repeatedly feel like they are experiencing "Internal Heat".
How TCM helps condition the "Internal Heat" constitution
TCM emphasizes pattern differentiation and treatment based on individual constitution, conditioning the body from the root, rather than merely "lowering the fire."
Chinese Herbal Medicine for Clearing Heat and Nourishing Yin
TCM physicians will prescribe personalized herbal formulas based on your constitution to achieve:
- Clearing heat from the body
- Nourishing Yin fluid
- Restoring body balance
Different constitutions require different herbs, therefore it is recommended to use them only after a diagnosis by a professional TCM physician.
Acupuncture Conditioning
Acupuncture helps restore the balance of Yin and Yang by regulating the flow of Qi and Blood. Through regulating Zang-fu functions, it can achieve:
- Clearing heat and lowering fire
- Improving sleep quality
- Relieving stress and irritability
How to prevent "Internal Heat"?
To prevent "Internal Heat," the focus is not on blindly eating cold-natured foods, but on reducing triggers and maintaining balance:
- Stay up late less and ensure adequate sleep
- Eat less fried, spicy, barbecued, and excessively sweet foods
- Reduce alcohol and smoking, and minimize heavy-flavored stimulants
- Maintain emotional stability and avoid prolonged excessive stress
- Adjust diet according to constitution, and do not blindly "lower the fire" long-term
Common Questions
Are "Internal Heat" and Yin deficiency the same?
No. "Internal Heat" is a broad term, while Yin deficiency is a specific constitution or state of imbalance; Yin deficiency can manifest as Deficiency Fire.
How to distinguish between Excess Fire and Deficiency Fire?
Excess Fire usually comes on urgently with severe symptoms; Deficiency Fire often occurs repeatedly, especially becoming more pronounced at night, and is often accompanied by dry mouth, night sweats, and insomnia.
Can I constantly eat cold-natured foods when I have "Internal Heat"?
Not recommended. If it belongs to Deficiency Fire or if your constitution leans towards deficiency, prolonged excessive consumption of cold-natured foods may actually damage the spleen and stomach, and deplete Yang Qi.
Balance is Key
"Internal Heat" is actually a signal of imbalance sent by the body. Rather than simply suppressing the symptoms, it is better to restore the body's Yin-Yang balance from the root through TCM conditioning, making your health more enduring and stable.
Do you frequently feel a sensation of uncomfortable bodily heat? Welcome to learn about our personalized TCM conditioning programs, and let our professional TCM physicians tailor an exclusive path to balance for you. Book a consultation today!
