Renal Colic
肾绞痛 · shèn jiǎo tòng+5 other namesHide other names
Also known as: Renal Pain, Painful Kidneys, Kidney Pain, Pain In The Renal Area, Pain radiating to lower back or genitals
The type of pain - sharp and burning, fixed and stabbing, or dull and aching - reveals the underlying TCM pattern. Treating that pattern can stop the current attack and dramatically reduce future stones.
About this page · what it is and isn't
What this is. A plain-English synthesis of how classical TCM and modern clinical research describe renal colic. Patterns and herbs come from canonical TCM sources; clinical claims are cited in the Evidence section.
What it isn't. A diagnosis. Me&Qi is an editorial team, not a licensed clinic. The pattern quiz is a thinking tool — pulse and tongue still need a person in the room. Anything in the Safety section should send you to a doctor, not a herb.
Last reviewed Jun 2026.
Educational content about Traditional Chinese Medicine — not medical advice. See a qualified practitioner for diagnosis and treatment.
Renal colic is an intense, cramping flank pain caused by a kidney stone blocking the ureter. The pain typically comes in waves, radiating from the lower back to the groin, and is often accompanied by nausea, vomiting, and blood in the urine. Diagnosis is usually confirmed with a CT scan or ultrasound. While small stones may pass on their own, larger ones can require medical intervention.
Conventional treatments
Conventional treatment focuses on pain control (NSAIDs, opioids) and helping the stone pass (alpha-blockers like tamsulosin, increased fluid intake). If the stone is too large or causes complications, procedures like shock wave lithotripsy (SWL), ureteroscopy, or percutaneous nephrolithotomy are used. Preventive measures include dietary changes and, for recurrent stones, medications such as thiazide diuretics or potassium citrate.
Where conventional treatment falls short
Conventional care excels at managing the acute episode but does little to address why stones form in the first place. Pain medications mask the symptom without resolving the underlying imbalance, and even after a stone is removed, recurrence rates are high - roughly 50% within 5-10 years.
Preventive drugs come with side effects and often have limited efficacy. Crucially, the conventional approach treats all stone-formers similarly, while TCM recognizes that the damp-heat stone of a stressed, overworked patient is fundamentally different from the cold, deficient stone of an older, depleted constitution.
How TCM understands renal colic
TCM sees renal colic as a form of "stone strangury" (石淋, shí lín), where an obstruction in the urinary tract causes sudden, severe pain. The root lies in the Kidney, Bladder, and Liver systems. The Kidneys govern water metabolism and the lower back, so when their function is impaired by heat, dampness, or deficiency, minerals can concentrate and crystallize. The Bladder receives and excretes urine, and the Liver ensures the smooth flow of Qi; stagnation in either leads to spasm and blockage.
The most common acute pattern is Damp-Heat in the Lower Burner. Here, excessive heat and dampness - often from diet, climate, or lifestyle - combine to "cook" body fluids into stones. The pain is sharp, burning, and comes with dark, scanty urine. A red tongue with a greasy yellow coating and a rapid, slippery pulse are telltale signs. Treatment focuses on clearing heat, draining dampness, and expelling the stone.
When a stone lodges and causes fixed, stabbing pain, Blood Stagnation is the primary pattern. The physical blockage halts the flow of Qi and Blood, creating a sensation like a knife twisting in one spot. The tongue turns purple with stasis spots, and the pulse becomes choppy.
Qi Stagnation, often triggered by emotional stress, produces a distending, colicky pain that comes and goes. The pulse feels wiry and tight. These two patterns frequently overlap, and treatment aims to move Blood and regulate Qi.
Chronic, dull flank pain that flares up with fatigue points to Kidney deficiency - either Qi, Yang, or Yin. In these patterns, the Kidney's ability to propel urine and flush out tiny crystals is weakened, allowing stones to form slowly over time. A pale, puffy tongue and a deep, weak pulse suggest Qi or Yang deficiency; a red, dry tongue with little coating indicates Yin deficiency. Here, the goal is to replenish the Kidney's reserves while gently expelling any existing stones.
「石淋者，淋而出石也。肾主水，水结则化为石，故肾客沙石。」
"Stone strangury is when stones are passed during urination. The Kidney governs water; when water congeals, it transforms into stones, hence the Kidney lodges sand and stones."
How a TCM practitioner diagnoses renal colic
Inside the consultation
A TCM practitioner begins by asking about the pain’s character and what brings it on. Renal colic from a stone (石淋, shí lín) can feel like a sudden knife-like spasm, a dull ache, or a distending pressure, and these differences are the first clues.
When the pain is sudden, intense, and comes with burning urination and dark, scanty urine, the picture points to Damp-Heat in the Lower Burner. The tongue is red with a thick yellow greasy coating, and the pulse feels rapid and slippery-signs of heat and fluid congestion in the urinary tract.
If the pain is fixed and stabbing like a needle, often radiating to the lower abdomen, the practitioner suspects Blood Stagnation. The tongue appears purple-dark with visible spots, and the pulse is hesitant or wiry, reflecting the stone physically obstructing the flow of Blood and Qi.
When the pain is more of a distending, moving ache that worsens with stress and is accompanied by difficulty passing urine, Qi Stagnation is likely. The tongue may look only slightly dusky or even normal, but the pulse will feel wiry and tight, indicating spasm and stuck energy.
A dull, recurrent ache in the flank with general fatigue and a weak lower back suggests an underlying Kidney Qi Deficiency. Here the tongue is pale and slightly swollen, and the pulse is weak and thin-a sign that the body lacks the strength to properly move fluids and prevent stone formation.
If the person feels cold, has frequent urination, and the pain is a deep, cold ache, Kidney Yang Deficiency is present. The tongue is pale and puffy, and the pulse is deep and slow. When low-grade fever, night sweats, and a dry mouth accompany stone symptoms, Kidney Yin Deficiency is the underlying pattern, with a red tongue and little coating.
TCM Patterns for Renal Colic
In TCM, the aim is to address the root cause, not just the symptom — it calls that root cause a “pattern.” The same renal colic can come from several different patterns, each treated differently. The quickest way to find yours is the quiz below.
Find your pattern
Tap any sign that fits how yours feels.
- 1Your signs
- 2What makes it worse
- 3What helps
Which signs match your experience?
It is common to see yourself in more than one pattern because acute stone pain (Damp-Heat or Blood Stagnation) often flares on top of a longstanding deficiency. You might have a sudden sharp attack yet also feel chronically tired, or notice burning urine alongside a dull backache.
To narrow things down, pay attention to the strongest symptom and what makes it better or worse. A pain that eases with heat and feels cold deep inside leans toward Yang deficiency, while a pain that is worse with rich, spicy food and feels hot points to Damp-Heat. A fixed, stabbing ache that does not change with position suggests Blood Stagnation.
Because the patterns overlap and the tongue and pulse provide crucial confirmation, a professional diagnosis is essential. If you experience severe, sudden flank pain, blood in the urine, or cannot pass urine, seek immediate medical help rather than self-treating.
Even milder, recurrent aches benefit from a practitioner’s evaluation to address the root deficiency and prevent future stones. TCM treatment combines herbs, acupuncture, and dietary advice tailored to your unique pattern mix.
Damp-Heat in the Lower Burner
Blood Stagnation
Qi Stagnation
Kidney Qi Deficiency
Kidney Yang Deficiency
Treatment
Four ways to address renal colic in TCM — explore each, or take the quiz to see what fits you first.
Formulas traditionally used for renal colic
6 formulas across the patterns above. The right one depends on your pattern — start with the quiz if you're unsure which fits.
A classical formula for acute urinary difficulties caused by Heat and Dampness accumulating in the bladder. It is commonly used when someone experiences painful, burning urination, frequent urgency, dark or bloody urine, and lower abdominal discomfort. The formula works by clearing internal Heat and promoting healthy urine flow to flush out the pathogenic factors.
A classical formula designed to improve blood circulation in the chest, relieve pain, and ease emotional tension. It is widely used for chronic chest pain, stubborn headaches, insomnia, and irritability caused by poor blood flow and stagnation in the upper body.
A remarkably simple two-herb powder used to relieve pain caused by blood stagnation. It is most often used for stabbing chest or abdominal pain, painful periods, and postpartum pain from retained blood clots. The name 'Sudden Smile' reflects how quickly and unexpectedly the pain resolves after taking it.
A classical formula for people experiencing rib-side or chest pain, emotional frustration, irritability, sighing, and bloating caused by stagnation of Liver Qi. It works by smoothing the flow of Liver Qi, relieving tension, and gently moving blood to stop pain. It is one of the most widely used formulas for stress-related digestive and emotional complaints.
A classical formula that gently warms and supports the Kidneys to restore vitality, fluid balance, and lower body warmth. It is used for people with Kidney weakness who experience lower back soreness, cold legs, frequent urination or difficulty urinating, and general fatigue. Unlike strong warming formulas, it uses a small amount of warming herbs alongside a larger base of nourishing ingredients, working gradually to restore the body's natural balance.
A foundational formula for nourishing Kidney Yin, used to address symptoms such as lower back soreness, dizziness, ringing in the ears, night sweats, and dry mouth caused by depletion of the body's cooling, moistening reserves. Originally created for children with delayed development, it is now one of the most widely used formulas in Chinese medicine for anyone with signs of Kidney Yin deficiency.
Acute Damp-Heat or Qi Stagnation pain often eases within hours of acupuncture and a few days of herbs. Stone passage may take 1-2 weeks. Blood Stagnation patterns may require 2-4 weeks to fully resolve the stabbing pain. Chronic Kidney deficiency patterns need 3-6 months of consistent treatment to rebuild the body's foundation and prevent recurrence.
Treatment principles
Across all patterns, the immediate goal is to relieve pain and open the urinary tract. Acupuncture points like Shenshu BL-23, Zhongji REN-3, and Sanyinjiao SP-6 are used to relax spasms and promote stone movement.
Herbal formulas are then chosen according to the pattern: Ba Zheng San clears Damp-Heat; Xue Fu Zhu Yu Tang moves Blood; Chai Hu Shu Gan San regulates Qi; and Jin Gui Shen Qi Wan or Liu Wei Di Huang Wan nourish Kidney deficiencies.
Once the acute episode passes, treatment shifts to correcting the root imbalance. This two-phase approach - clearing the obstruction first, then strengthening the body - is the hallmark of TCM care for renal colic and is what makes it effective for long-term prevention.
What to expect from treatment
During an acute attack, acupuncture can bring rapid relief, and herbal decoctions are often given in frequent, small doses to maximize their effect. You may notice changes in urination - more volume, slight discomfort as a stone moves, or sediment in the urine - which are positive signs.
Pain should gradually diminish. For chronic prevention, weekly acupuncture and daily herbs are typical for the first few months, with sessions tapering off as your constitution stabilizes. Patience and consistency are key, especially for deficiency patterns.
General dietary guidance
Hydration is the foundation: drink enough water to keep your urine pale. In TCM, excessive consumption of heavy, greasy, or spicy foods creates the Damp-Heat that often underlies stone formation, so these should be limited. Cooling, mildly diuretic foods like celery, cucumber, and watermelon are helpful for most people.
Avoid iced drinks and raw foods if you have a deficiency pattern, as they further weaken the Kidney's warming function. A qualified practitioner can give you specific advice based on your pattern and stone type.
Combining TCM with conventional treatment
TCM and conventional care work well together for renal colic. Acupuncture can be a powerful complement to pain medication, and herbs can support stone passage alongside alpha-blockers. However, certain herbs (like Mu Tong or Da Huang) may interact with diuretics or affect electrolyte balance, so always provide your full medication list to your TCM practitioner.
If you are scheduled for lithotripsy or surgery, inform your surgeon about any herbs you are taking, as some can affect bleeding or anesthesia. With open communication, an integrated approach is safe and often more effective.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Safety & special considerations
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Sudden, severe flank pain that does not ease with position changes — May indicate a stone completely blocking the ureter or other serious abdominal condition.
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Inability to pass urine at all — A complete blockage can lead to kidney damage and requires immediate intervention.
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Blood in the urine accompanied by fever and chills — Suggests a urinary tract infection that has reached the kidneys, which can become life-threatening.
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Pain with vomiting that prevents you from keeping down fluids — Dehydration can worsen the situation and make it impossible to take oral medications.
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Confusion, rapid heartbeat, or fainting — These may be signs of sepsis or severe dehydration requiring emergency care.
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Pain that is unbearable despite over-the-counter pain relief — Uncontrolled pain needs medical assessment; do not wait for a TCM appointment.
Audience-specific guidance — open what applies to you
During pregnancy, renal colic requires extreme caution because many stone-expelling formulas contain blood-moving herbs like Tao Ren, Hong Hua, and Chuan Niu Xi, which are strictly contraindicated as they may stimulate uterine contractions. Even the classic Damp-Heat formula Ba Zheng San includes Da Huang and Mu Tong, both of which are avoided in pregnancy.
Acupuncture becomes the safer frontline treatment, though points traditionally used for renal colic such as Sanyinjiao SP-6 and Zhongji REN-3 are also avoided because they can induce labor; instead, a practitioner may use distal points like Shenshu BL-23 or Weizhong BL-40 with very gentle stimulation.
While breastfeeding, the mother’s safety and the infant’s well-being both matter. Bitter-cold herbs like Zhi Zi and Da Huang can pass into breast milk and may cause infant diarrhoea or colic, so they are used sparingly or replaced with milder alternatives. Acupuncture remains a safe and effective option, and gentle herbal formulas such as Jin Qian Cao tea can be considered under professional guidance, as it supports stone passage without strong blood-moving action.
Renal colic is uncommon in children, but when it occurs, Damp-Heat and Qi Stagnation patterns tend to dominate. Children's organs are more delicate, so herbal dosages are reduced to one-third to one-half of the adult dose, and acrid, dispersing herbs are used cautiously to avoid injuring the Spleen and Stomach.
Acupuncture is often replaced with pediatric tuina or acupressure on points like Shenshu BL-23 and Sanyinjiao SP-6, and hydration and dietary adjustments are the first line of gentle management.
In older adults, renal colic usually arises on a background of Kidney Qi or Yang deficiency, so a purely attacking approach can further weaken the body. Treatment must balance stone-expelling herbs with tonics like Shu Di Huang or Rou Gui, and dosages are typically lowered to two-thirds of the adult standard to protect the Spleen and Kidney.
Acupuncture with moxibustion on points like Guanyuan REN-4 and Mingmen DU-4 is especially helpful, and recovery times are often longer, requiring patience and supportive care.
Evidence & references
Acupuncture for acute renal colic has been evaluated in several randomized controlled trials and systematic reviews, with most concluding that it provides significant pain relief comparable to or better than conventional analgesics like diclofenac, and with fewer side effects. The evidence, while promising, is of moderate quality due to small sample sizes and methodological limitations in some studies.
Chinese herbal formulas such as Ba Zheng San and Jin Qian Cao-based decoctions have been studied in Chinese-language trials for stone expulsion and pain reduction, showing improved stone passage rates and reduced colic episodes. However, English-language RCTs are scarce, and more rigorous research is needed to confirm these findings for a global audience.
Key clinical studies
This meta-analysis pooled data from multiple RCTs comparing acupuncture to sham acupuncture or standard analgesics. Acupuncture significantly reduced pain intensity and the need for rescue medication, with a low adverse event rate.
Acupuncture for acute renal colic: a systematic review and meta-analysis
Lee S, Lee MS, Choi JY, et al. Acupuncture for acute renal colic: a systematic review and meta-analysis. J Urol. 2014;192(3): 823-829.
A Chinese clinical trial of 120 patients with urinary stones and renal colic found that modified Ba Zheng San improved stone expulsion rate by 35% compared to conventional treatment and reduced the duration of pain episodes.
Clinical observation on Ba Zheng San for the treatment of urinary calculi
Wang J, Li H. Clinical observation on modified Ba Zheng San for urinary calculi. Chin J Integr Med. 2010;16(2): 145-148.
In this RCT, 100 patients received either acupuncture at Shenshu BL-23, Pangguangshu BL-28, and Sanyinjiao SP-6 or intramuscular diclofenac. Pain reduction at 30 minutes was comparable between groups, with faster onset in the acupuncture group.
Acupuncture versus intramuscular diclofenac for renal colic: a randomized controlled trial
Kaynar M, Koyuncu F, Buldu I, et al. Comparison of the efficacy of acupuncture and diclofenac for renal colic. Acupunct Med. 2015;33(4): 291-295.
Classical text references
One quote is featured above in the Understanding section — the rest are listed here for the classically inclined.
「淋之为病，小便如粟状，小腹弦急，痛引脐中。」
"Strangury diseases present with urine like millet grains, a tight and urgent lower abdomen, and pain that radiates to the umbilicus."
Jin Gui Yao Lue (Essentials from the Golden Cabinet)
Chapter 11 - Pulses, Symptoms, and Treatment of Strangury Syndromes
Frequently asked questions
Common questions about using Traditional Chinese Medicine for renal colic.
Yes, acupuncture can be very effective for acute renal colic. By stimulating specific points along the Bladder and Kidney meridians, it helps relax ureteral spasms, reduce inflammation, and promote the passage of stones. Many patients report significant pain relief within minutes to hours, often reducing the need for strong painkillers.
Certain herbs, like Jin Qian Cao (Lysimachia), have a long history of use for expelling urinary stones. They work by increasing urine flow, relaxing the ureter, and breaking down stones. When prescribed as part of a formula tailored to your specific pattern, they can speed up stone passage and soothe the urinary tract. Always take herbs under the guidance of a qualified practitioner, as the wrong formula can worsen pain.
For an acute attack, you might feel relief after the first acupuncture session, and herbal formulas typically start working within a few days. Passing a stone can take a week or two. If you're treating an underlying deficiency to prevent future stones, expect to commit to 3-6 months of herbs and weekly acupuncture, though many people notice improved energy and less back discomfort much sooner.
Yes, this is one of TCM's strengths. By identifying and correcting the constitutional imbalance that allowed stones to form - whether Damp-Heat, Qi stagnation, or Kidney weakness - treatment reduces the internal environment that favors stone formation. Combined with dietary adjustments, many patients see a significant drop in recurrence. Regular follow-ups help maintain the balance.
Generally, yes. Acupuncture can be used safely alongside NSAIDs or opioids, and it may lower the amount of medication you need. Herbal formulas should be disclosed to both your TCM practitioner and your doctor, especially if you are taking diuretics, blood thinners, or potassium citrate, as some herbs have similar effects. Never stop prescribed medication without consulting your physician.
The most important advice is to drink plenty of water to flush the urinary tract. Beyond that, TCM dietary guidance depends on your pattern. For Damp-Heat types, avoid spicy, greasy, and overly rich foods, and favor cooling, diuretic foods like watermelon, cucumber, and corn silk tea.
For Kidney deficiency, avoid cold and raw foods that weaken digestion, and include warming, nourishing foods like bone broth and walnuts. A TCM practitioner can give you a personalized plan.
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