Damp-Heat in Stomach and Spleen

Understanding Damp-Heat in Stomach and Spleen

This is the digestive version of Damp-Heat. The Spleen and Stomach sit at the centre, and when Dampness and Heat settle there the whole middle feels congested rather than painful.

The upper abdomen feels full and heavy, often worse after eating. The stools are sticky, difficult to pass cleanly, or loose with a strong smell. The mouth may taste bitter or sticky, and appetite is poor despite the person wanting food.

The tongue is the diagnostic centrepiece: a red body with a thick yellow greasy coating, especially in the middle and at the root. The pulse is typically soggy.

The usual causes are dietary. Rich, greasy, sweet and spicy food and alcohol feed Dampness and Heat directly, and a Spleen that is already weak turns the extra into Dampness rather than using it.

Treatment clears Heat and dries Dampness while keeping the middle moving, using aromatic herbs that transform the sticky quality rather than heavy tonics that would add to it.

Signs and symptoms

Key signs

• Bloating and fullness in the upper abdomen
• Yellow greasy tongue coating
• Sticky or incomplete bowel movements
• Bitter or sticky taste in the mouth

Also seen

• Poor appetite with a feeling of food sitting there
• Nausea or a queasy feeling
• A heavy, muzzy head
• Strong-smelling stools
• Tiredness after eating
• Oily skin and a flushed face
• Thirst without a desire to drink much

Variations

• Mouth ulcers
• Bad breath
• Loose stools with urgency
• A feeling of heat in the stomach

Timing

• Symptoms build after meals and through the day.
• They tend to flare in humid weather and after rich meals or alcohol.

Practitioner notes

• The tongue is the clearest sign: red, often swollen with teeth marks, with a thick yellow greasy coat in the centre and at the root.
• The pulse is typically soggy and rapid. A thin weak pulse would suggest deficiency instead.
• The distinction from plain Damp-Heat is the digestive focus: this pattern is centred on the middle, not the skin or the lower body.
• The distinction from Spleen Qi deficiency is the coat: deficiency has a thin pale coat, this pattern has a thick yellow one.

Causes

Common causes

• Rich, greasy, sweet or spicy food
• Alcohol
• External Damp-Heat
• Emotional stress, especially overthinking and frustration
• A pre-existing weak Spleen

How it develops

• It often follows a period of Spleen weakness that allowed Dampness to accumulate, with Heat added by diet.
• If untreated, the Damp-Heat can move to the skin, the Liver, or the lower burner.

Diagnosis

Diagnosis centres on the tongue coating and on the quality of digestion and stool.

Tongue

• Body: Red, possibly swollen with teeth marks.
• Coating: Thick, yellow and greasy in the centre and root.
• Note: A thin white coat with a pale body would point to Spleen deficiency instead.

Pulse

Soggy, Rapid, Slippery

The soggy quality shows Dampness; rapidity shows Heat.

Observation

• Oily skin and a flushed face
• A slightly distended upper abdomen
• A heavy bearing

Listening

• Belching
• A heavy voice

Palpation

• Abdomen: Fullness and mild tenderness around the upper abdomen, without guarding.
• Channels: The abdomen may feel warm; ST-25 and REN-12 may be tender.

Questions that separate it from look-alikes

• How are the stools: sticky, loose or incomplete?
• Is there a bitter or sticky taste?
• What is the diet, especially fried food, sweets and alcohol?
• Is it worse in humid weather?

Treatment

Principles

• Clear Heat
• Dry Dampness
• Move the middle and transform stagnation
• Avoid heavy tonics while the coating is thick

Herbs

Formulas

• Lian Po Yin - The reference formula for this pattern: clears Heat, dries Dampness and moves the middle.
• Gan Lu Xiao Du Dan - For Damp-Heat with toxic swelling, used where infection is present.
• San Ren Tang - For Damp-Heat at the surface and in the middle, with heaviness and a muzzy head.
• Yin Chen Hao Tang - For Damp-Heat affecting the Liver and Gallbladder, used when jaundice appears.
• Ban Xia Xie Xin Tang - For a mixed picture with nausea, fullness and Heat in the middle.
• Ping Wei San - A drying, moving formula for Dampness settled in the middle, without pronounced Heat.

Acupoints

• SP-4 (Gongsun) - The master point of the Chong vessel, used for fullness and digestive congestion.
• ST-25 (Tianshu) - Regulates the intestines and is used for sticky or irregular stools.
• REN-12 (Zhongwan) - The Stomach front-mu point, for fullness, nausea and poor appetite.
• LI-11 (Quchi) - Clears Heat, useful where the Heat component is marked.
• BL-20 (Pishu) - The Spleen back-shu point, supporting the Spleen underneath.

Personalising the plan

• If Heat dominates, cooling herbs are increased.
• If Dampness dominates, aromatic drying herbs are increased.
• If nausea and fullness dominate, Qi-moving and descending herbs are added.
• If the Spleen is weak underneath, gentle support is added rather than rich tonics.

Self-care

Diet

• Light, cooked, bland meals; small portions
• Bitter greens and barley are traditionally used to clear Damp-Heat
• Avoid fried, greasy, sweet and spicy food
• Avoid alcohol
• Warm water rather than iced drinks

Lifestyle

• Regular meal times and no late heavy meals
• Gentle walking after eating
• Keep the environment dry
• Reduce overthinking and stress, which are read as burdening the Spleen

Qigong and movement

• Gentle abdominal breathing and walking rather than intense exercise after meals.

How it differs from look-alikes

Patterns that can be mistaken for damp-heat in stomach and spleen, and the contrast that separates them.

Where it appears

Skin conditions in which this pattern is commonly seen.

Safety and when to get help

For anything severe, sudden or spreading quickly, read when a skin problem needs urgent care.

This page describes a TCM pattern, not a diagnosis, and a pattern can accompany more than one skin condition. Get urgent medical help for a rash with fever, confusion or feeling very unwell; skin that is blistering, peeling or spreading quickly; swelling of the face, lips or throat, or difficulty breathing; or a lesion with increasing pain, warmth, red streaks or pus. For anything persistent, severe or changing, have it assessed by a clinician before treating it yourself.

Read the skin condition pages for the red flags that belong to a specific presentation.

Urgent-sign guidance is based on standard sources: NHS anaphylaxis, NHS cellulitis, NHS Stevens-Johnson syndrome, NHS melanoma.

Evidence note

No controlled trial of this treatment in skin conditions was identified for this entry. What is described here rests on the classical and later materia medica record and on traditional clinical use, not on controlled trial evidence, and it is not a prediction of benefit. Where skin-specific research does exist it is linked above.

Related patterns