Bumps on Both Lips and Belly Button? The Old Saying "Bumps on the Lips, Dirty Inside" Hides a Wealth of TCM Wisdom

When I was a child, I often heard the elders in my family repeat an old saying: "Bumps on the lips mean the belly is not clean." At the time, I took it merely as folk wisdom born of experience. It was only after studying medicine and looking back that I began to savor its deeper meaning. The lips and the navel—one at the upper part of the body, the other at the center of the torso—seem completely unrelated. Why would bumps appear on both places at the same time? Does this old proverb actually hold any truth in Traditional Chinese Medicine (TCM)?

According to meridian theory, the spleen and stomach "open into" the lips, while the area around the navel is precisely where the Spleen Meridian and Stomach Meridian cross and interweave. The lips are known as "the blossoming of the Spleen," and the navel is "the pivot of the Conception Vessel (Ren Mai)." When bumps appear on both locations simultaneously, they often reflect dampness and turbidity in the Middle Jiao projecting onto the skin. In other words, when the spleen and stomach—the body's "transfer station"—are struggling to keep up, waste accumulates at two different exits.

I. The Hidden Passage Between the Mouth and the Navel: The Confluence of the Conception Vessel and Spleen Meridian

The lips and navel may seem far apart, one above and one below, but in the world of meridians, a clear "transport route" connects them. The Spleen Meridian starts at the big toe, ascends along the inner thigh, enters the abdomen, connects with the stomach and intestines, then continues upward through the diaphragm, parallels the throat, connects to the root of the tongue, and spreads beneath the tongue. The Conception Vessel originates in the uterus (or lower abdomen), ascends along the midline of the abdomen, encircles the lips, and connects to the mouth. The navel lies directly on the Conception Vessel, and the lips are precisely the terminal region of that vessel. Both areas fall within the sphere of influence of the Spleen Meridian and the Conception Vessel.

The spleen and stomach transform food and water into qi and blood, and this vast network links the skin of the upper and lower body into a single whole. Imagine a river with garbage floating upstream—will the downstream not inevitably become clogged? Similarly, if damp-heat accumulates in the Middle Jiao spleen and stomach, the damp pathogen can travel upward along the meridian to the lip area, or spread outward along the abdominal wall to the navel region.

In Huangdi Neijing · Suwen · Chapter 74 "Zhi Zhen Yao Da Lun", it is written: "All dampness, swelling, and fullness are attributed to the Spleen." The swelling, lumps, and bumps produced by the accumulation of dampness are all inseparable from the transformative function of the spleen. This classic statement points out the core attribution of "swelling" and "fullness"—and when bumps appear on both the lips and the navel, it is precisely the echoing of "dampness" and "swelling" at upper and lower sites.

II. Two Faces of Bumps: Different Appearances for Dampness-Dominant and Heat-Dominant Patterns

Even though they are both called "bumps," their form and behavior can be completely opposite. In such cases, if the difference in disease nature is overlooked, the treatment direction may go completely astray. Proper pattern differentiation comes from careful observation and holistic judgment.

1. Dampness Predominance: Pale bumps, blurred borders, lingering and slow to resolve

The bumps are lighter in color, may not even be red or swollen, feel soft and ill-defined when touched, and may be accompanied by a white greasy tongue coating, a sticky sensation in the mouth, abdominal distension after meals, and loose stools. This type is characterized by "dampness being sticky and lingering"—like the endless drizzle of the plum rain season, when the air is saturated with moisture and everything grows moldy.

When dampness traps the spleen, spleen qi fails to ascend, and clear yang cannot spread outward, water-dampness that should not remain stagnates between the skin and muscles. These bumps may break open easily and tend to recur after healing. The root problem lies in insufficient transformative power of the spleen, allowing fluids to pool locally into tiny water-filled sacs "between the skin and the membrane."

2. Obvious Heat Signs: Red bumps, swelling with heat, irritability and bitter taste in the mouth

The bumps are reddish in color, with distending pain upon pressure, and may be accompanied by dry mouth, a bitter taste, yellow urine, a red tongue body, and a yellow greasy tongue coating. This pattern belongs to dampness stagnating and transforming into heat, or the spleen and stomach themselves harboring heat, resulting in damp-heat binding together and steaming upward to the body surface. Such skin manifestations often appear more acutely and tend to worsen after emotional agitation or consumption of spicy, greasy foods. In clinical practice, this type of red bump is more common among people who habitually consume rich, fatty, and sweet foods, often accompanied by epigastric fullness and heavy breath odor. If the bumps feel hard on pressure with deep roots, this indicates a combination of dampness, heat, and blood stasis—neither clearing heat alone nor dispelling dampness alone is sufficient.

III. White Hyacinth Bean and Poria: Two "Street Cleaners" for the Spleen and Stomach

The gentle power of food ingredients is sometimes more suited to daily nurturing than medication. Let us begin with a common medicinal and edible item. White hyacinth bean (baibiandou) is slightly warm in nature, sweet in flavor, and enters the Spleen and Stomach Meridians. It is neither cold nor drying, excels at resolving dampness without harming righteous qi, and is especially suitable for people with spleen deficiency and exuberant dampness, poor appetite, and loose stools. The special quality of white hyacinth bean lies in its dual action of strengthening the spleen and resolving dampness—it is like simultaneously repairing the water pump and dredging the silt from the irrigation ditch.

Another ingredient, poria (fuling), is neutral in nature, sweet and bland in flavor, and enters the Heart, Lung, Spleen, and Kidney Meridians. The "blandness" of poria enables it to percolate dampness—like a sponge, it gradually absorbs excess dampness and turbidity from the body. Unlike white hyacinth bean, poria also calms the spirit and settles the mind. For those who are heavy with dampness yet sleep lightly, dream frequently, and wake easily, poria seems tailor-made. When elders added a few slices of poria to their congee, they appreciated precisely its mild, even-tempered character that comes and goes with ease.

The combination of white hyacinth bean and poria can be understood as a dual-track approach of strengthening the spleen and percolating dampness—one holds the rear to protect righteous qi, the other clears the front to eliminate pathogenic factors. When making soups or porridges, casually adding these two ingredients neither affects the taste nor subtly lightens the burden on the spleen and stomach. This arrangement is not a formula but a gentle, silent daily companion.

IV. Coix Seed Makes a Fresh Appearance, Tangerine Peel Takes Over to Finish

Continuing from white hyacinth bean and poria, we encounter another familiar ingredient—coix seed (yiyiren). Coix seed is cool in nature, sweet and bland in flavor, and enters the Spleen, Stomach, and Lung Meridians. Compared with the slight warmth of white hyacinth bean, coix seed carries a more refreshing coolness, making it especially adept at handling the situation of damp-heat stagnation, greasy skin, and red bumps. Its advantage lies in clearing heat and promoting diuresis simultaneously—like a breeze through a bamboo grove that both scatters the water vapor and carries away the stifling heat. However, its cool nature means that people with constitutionally deficient cold should not consume it for long periods. This is something to be discerned through careful attention to your body's responses in daily life.

At this point, let tangerine peel (chenpi) come in to take over. Tangerine peel is warm in nature, bitter and pungent in flavor, and enters the Lung and Spleen Meridians. Its greatest skill is regulating qi. Dampness most easily obstructs the qi mechanism; when qi is not smooth, dampness is difficult to transform—like a stagnant pool of water, only by getting the water moving again can the silt at the bottom be carried away. Tangerine peel's role is to get the qi mechanism flowing. Compared with the previous ingredients, tangerine peel does not directly dispel dampness; rather, it clears the path for dampness to be resolved.

Observing coix seed and tangerine peel together, one is more toward clearing, the other more toward regulating. Coix seed clears the pathogen of damp-heat; tangerine peel regulates the qi of the spleen and stomach. Used together, dampness has a route out, heat has an outlet, and qi has a passage. Their relationship is not a simple addition but a relay of sequential coordination—coix seed opens the road ahead, tangerine peel guides and disperses from behind. In humid, muggy seasons, drinking a bowl of coix seed and tangerine peel water will ease that sticky, uncomfortable feeling, and the little bumps on the skin will also settle down.

V. Sweet and Greasy: The "Sweet Trap" of the Spleen

Returning to the opening phrase "dirty inside," overindulgence in sweet and greasy foods is often the main cause of dampness and turbidity in the spleen and stomach. Sweet flavors enter the spleen; moderate sweets do nourish spleen qi, but excessive sweets will overwhelm the spleen. Cakes, milk tea, chocolate—these sweet temptations that modern people cannot give up—are transformed into excess "dampness" in the body, far exceeding the spleen and stomach's capacity to process. The spleen corresponds to Earth, and Earth prefers dryness and abhors dampness; sweet and greasy foods are precisely the breeding ground for dampness.

Many people with recurrent bumps on the lips and navel, when traced back to their dietary habits, will in eight or nine cases out of ten show a tendency toward sweet or greasy cravings. This is not an accusation, but a gentle reminder: the human body is like a pot—only with the right heat can food be cooked thoroughly. Too much firewood in the stove dries up the water in the pot; too little firewood leaves the rice undercooked. The spleen functions the same way. Excess nutrition is that "excess firewood." If it cannot be transformed, it becomes a semi-finished product—dampness and turbidity—manifesting on the skin as bumps. The TCM classic Pi Wei Lun · "On the Prosperity and Decline of the Spleen and Stomach" states: "All diseases arise from the decline of the spleen and stomach." Once the spleen and stomach fail to operate properly, many external "minor ailments" find their opportunity. The deeper meaning of this passage is that bumps on the skin are only the tip of the iceberg; what truly needs attention is whether the transformative capacity of the spleen and stomach has already flashed a yellow light.

VI. Sleep Early, Rise Early, and Chew Slowly: Slow Down, and the Spleen Will Like You

The relationship between the pace of life and skin bumps is far closer than imagined. Staying up late damages spleen yang; prolonged sitting traps spleen qi; anxiety consumes spleen blood—these three things are almost standard for modern people. In TCM, the spleen not only governs digestion and absorption but also connects with the muscles, limbs, and mental activities. Excessive worry directly consumes the qi and blood of the spleen—this is why skin problems tend to come knocking during times of stress. Regular meals and thorough chewing are the simplest yet most effective ways to nurture the spleen and stomach. Chewing a few more times per mouthful greatly reduces the burden on the spleen.

Exercise and emotional well-being should also not be absent. There is no need to pursue intense exercise that leaves you drenched in sweat. Gentle, stretching activities such as walking, Baduanjin, or tai chi can effectively promote the ascending and descending of spleen and stomach qi. Emotionally, try to learn to let go. No matter how momentous the matter, meals should still be eaten properly, and days should still be lived slowly. Small skin bumps arising from dampness and turbidity essentially reflect an imbalance in lifestyle—correct the habits, and the skin condition will naturally improve.

Have you ever considered that bumps appearing simultaneously on the lips and the navel might be the body's reminder: "Give your spleen and stomach a rest"? The body does not lie; it simply and honestly reflects the weather of that inner landscape within you. Rather than fretting over the superficial bumps, take the time to listen to what the body truly wants to say—learn to nurture that "central fertile soil." When the soil is good, the grass and trees will naturally grow in order.

References:

1. The original text of Huangdi Neijing · Suwen is available in TCM classical literature databases: https://tcmdata.cintcm.com/

2. WHO strategy document on traditional medicine: https://www.who.int/health-topics/traditional-complementary-and-integrative-medicine

3. Official website of the National Administration of Traditional Chinese Medicine: https://www.satcm.gov.cn/

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