A woman checks her temperature.
A woman checks her temperature.         A woman checks her temperature.
A Alerna Kidney Health

What Can Mimic Kidney Stone Pain? Common Causes and When to Get Help

Feb 17, 2026 · Kidney Health

Several conditions can mimic kidney stone pain, including urinary infections, gallbladder problems, appendicitis, bowel disorders, and muscle strain. Kidney stone-like pain is often caused by conditions affecting the urinary tract, digestive system, muscles, or reproductive organs, so symptom pattern and testing matter. Symptom patterns may offer helpful clues, but testing is often needed for a clearer diagnosis. This article explains how different conditions can resemble kidney stone pain and why careful evaluation helps guide safer decisions.


This content is for educational purposes only and is not intended as medical advice. Consult your healthcare provider for guidance specific to your situation.

Why Kidney Stone-Like Pain Can Be Confusing

Pain signals from the urinary tract, digestive system, muscles, and reproductive organs can overlap. Location alone does not always point to one cause, and symptoms can shift quickly. A single episode of stone pain may feel different from the next, which makes comparisons tricky.

Overlapping Pain Signals

Nerves in the back, abdomen, pelvis, and groin share pathways, so discomfort in one area may be felt somewhere else. Flank pain, abdominal pain, or pelvic pain may all feel related even when the cause differs. For example, gallbladder stone pain can radiate toward the back, while IBS pain may stay lower in the abdomen. This overlap is why similar symptoms often lead people to wonder whether kidney stones are involved.

Symptom Mix That Blurs the Picture

Many conditions bring a mix of urinary symptoms, digestive upset, or muscle tenderness. A burning sensation, frequent urination, or foul-smelling urine may suggest a urinary tract infection, but these symptoms can also occur with stones.


When severe pain is paired with nausea or sweating, it can be difficult to tell whether a stone is moving or another problem is causing pain. Careful history and testing often provide clearer direction.

Man in pain on his back, showing what can mimic kidney stone pain.

What Kidney Stone Pain Often Feels Like

Kidney stone pain is often described in a few common patterns. These patterns can help frame a conversation with a clinician, especially when combined with common kidney stone symptoms, such as urgency or changes in urine color. While not every episode follows the same path, certain features tend to repeat.


Flank-to-Lower-Abdomen Pattern

The classic stone pain pattern usually begins in the side or back and may radiate to the lower abdomen or groin as the stone moves through the urinary system. This shift often happens over hours and may feel like pressure or stabbing discomfort. People who have had previous kidney stones sometimes recognize this path more quickly, although new pain does not always mean another stone is present.

Wave-Like Intensity Changes

Another hallmark is wave-like intensity. Pain may rise to intense pain, ease briefly, then return. This cycling can feel different from steady muscle soreness or digestive cramps. The pattern can suggest movement within the urinary tract, although other conditions may also cause sudden, intermittent pain.

Urination and Urine-Color Clues

Changes during urination can offer clues. Frequent urination, urgency, or a burning sensation sometimes appear with stones. Urine may look cloudy or pink, but color alone does not confirm stone formation. Clinicians often pair symptoms with urine testing and imaging when a stone is a concern.

A healthcare professional in blue scrubs places their hands on a person

Kidney Stone Pain vs Common Mimics (Quick Comparison)

A side-by-side view can help organize symptoms and make medical visits more productive. Differences are not always clear-cut, so persistent or severe discomfort usually deserves evaluation.


This chart highlights symptom patterns that often differ, even when pain feels similar.

Possible Cause

Pain Location Pattern

Common Add-On Clues

Often Needs Same-Day Care If…

Kidney stone

The side or flank may move downward

Urgency, burning, pink or red urine

Severe pain, vomiting, trouble urinating

UTI

The lower belly or pelvis is more common

Burning, frequent urination

Fever, worsening pain, and back pain with illness

Kidney infection

Side or flank plus feeling sick

Fever, chills, nausea

Fever, weakness, dehydration risk

Appendicitis

Often, the right lower belly

Loss of appetite, worsening tenderness

Rapid worsening pain or fever

Gallstones

Upper right belly or back

Nausea after fatty meals

Persistent pain or vomiting

Muscle strain

Back or flank, tender to the touch

Worse with movement

Pain with fever or urine changes


Conditions That May Mimic Kidney Stone Pain

Many medical conditions may produce pain similar to kidney stone pain, especially when inflammation, muscle spasm, or nerve irritation is involved. A clinician often narrows the cause by pairing symptom patterns with testing such as blood tests, imaging, or urine testing.

Urinary Tract Infection and Kidney Infection

Urinary tract infections often create urinary discomfort, burning, and frequent urination. When the infection spreads upward, kidney infections may bring flank pain, fever, and nausea. These patterns can closely mimic kidney stone pain, especially when paired with foul-smelling urine or fatigue.

Bladder Stones

Bladder stones form lower in the urinary system and may cause pressure, urgency, or lower abdomen pain. Unlike a stone higher in the kidney, this discomfort often centers in the pelvis. The similar pain can still be confusing without testing.


Gallstones

Gallbladder stones and gallbladder attacks typically cause upper abdomen pain or back pressure after meals. Because the discomfort can radiate, it may be mistaken for kidney stones, even though the bile duct rather than the urine is involved.

Appendicitis

Appendicitis often produces lower right abdominal pain that worsens over time. Fever and loss of appetite are common clues. Rapid worsening pain or fever warrants urgent medical evaluation.

Ovarian Cysts and Ectopic Pregnancy

Ovarian cysts, which are fluid-filled sacs, may cause sharp pelvic pain or lower abdominal pain. Hormonal timing or the menstrual cycle may provide context. Severe or sudden pelvic pain during pregnancy usually needs urgent evaluation.

A person in a pink cardigan and light-colored pants is sitting on the edge of a bed, holding their lower back.

Diverticulitis and Other Bowel Causes

Inflammation in the colon may cause steady abdominal pain, fever, and changes in bowel habits. This pain may stay localized but still mimic kidney stone discomfort.

Irritable Bowel Syndrome and Gas Pain

Irritable bowel syndrome often leads to IBS pain, bloating, and cramping. Gas buildup may create sharp pain that shifts position, making it easy to confuse with stone pain, especially when bowel habits change.

Hernia

A hernia may cause localized tenderness in the groin or lower abdomen. The pain may worsen with lifting or coughing and may feel like a moving pressure.

Musculoskeletal Strain and Spine Issues

Muscle strain in the abdominal wall or back typically causes flank pain that increases with movement. Unlike a stone, this discomfort often changes with posture or rest.

Shingles and Nerve Pain

Shingles can cause burning or stabbing nerve pain on one side of the body before a rash appears. The early phase can resemble kidney discomfort until skin changes become visible.

Less Common Causes Worth Checking

Other causes include vascular problems, infections that may block urine flow, or rare anatomical issues. Persistent or unexplained pain usually benefits from professional evaluation rather than self-diagnosis.

Left-Side vs Right-Side Pain: What Location Can Suggest

Pain location can offer clues, but it is not a reliable yes-or-no test. Some conditions tend to show up more on one side, yet overlap is common. Tracking the side, timing, and triggers can still help clinicians interpret patterns.

Left-Side Pattern Clues

Left-sided discomfort may be related to Irritable Bowel Syndrome (IBS) or diverticulitis. Kidney stones on the left can also produce groin pain or side pressure. The overlap of similar symptoms often requires testing to confirm.

Right-Side Pattern Clues

Because nerve pathways cross regions, pain may shift or spread. Location provides hints but cannot replace imaging or detecting stones through testing.

Location Limits and Overlap

Right-sided pain often raises concern for appendicitis or gallbladder stones. Lower right abdomen pain that worsens quickly is usually not ignored. Stones can occur on either side, so right-sided pain alone often does not confirm the cause.

Man is having pain on his back.

When Urgent Care Is the Safer Choice

Evaluation often starts with symptom history and a focused exam. Testing can help confirm a stone, check for infection, and rule out other causes of severe pain. The goal is an accurate diagnosis and more informed next steps rather than quick assumptions.

Symptom History and Exam

Clinicians often ask about timing, triggers, and whether a stone moves sensation is present. They may also review family history, certain medications, and lifestyle factors, such as rapid weight loss or diets high in animal protein.

Urine and Blood Testing

Urine testing checks for infection, blood, or crystals such as calcium oxalate. Blood tests evaluate kidney function and signs of inflammation. These results can help clarify whether kidney stones are present or another cause is more likely.

Imaging and Follow-Up Plans

CT scans, ultrasound, or X-rays can help identify stones and other causes of severe pain. Imaging can show stone size, location, and whether urine flow could be blocked. Follow-up plans often focus on symptom monitoring and clinician-guided long-term urinary health strategies.

A medical professional is applying a blue tourniquet to an arm in preparation for a blood draw.

When Urgent Care Is the Safer Choice

Certain symptoms raise concern for infection, blockage, dehydration, or other urgent problems. Prompt evaluation can also help with pain control and faster testing. Immediate medical attention is often appropriate when warning signs appear.

Emergency Warning Signs

Urgent care or emergency evaluation is recommended if any of these symptoms occur:

  • Fever or chills

  • Vomiting with trouble keeping fluids down

  • Severe pain that does not improve

  • Trouble urinating or very low urine output

  • Fainting, confusion, or unusual weakness

  • Pregnancy with severe belly or pelvic pain

Same-Day Call Situations

Same-day medical advice is often a good idea in these situations:

  • Pain that keeps returning or keeps getting worse

  • New urinary burning or strong urine odor

  • Back or side pain with feeling unwell

  • History of repeated stones or frequent UTIs

  • One functioning kidney or known kidney concerns

What Can Mimic Kidney Stone Pain and Next Steps

Several conditions can mimic kidney stone pain, including urinary infections, gallbladder issues, appendicitis, muscle strain, nerve irritation, and bowel disorders. Symptom patterns can offer clues, but testing is often needed for an accurate diagnosis. Severe pain, fever, vomiting, or trouble urinating warrants urgent evaluation. When symptoms are milder, clear notes about timing and triggers, and early medical advice can support safer decisions.

Frequently Asked Questions

What else can cause pain like a kidney stone?

Urinary tract infections, kidney infections, gallbladder stones, appendicitis, ovarian cysts, IBS pain, hernias, muscle strain, and nerve irritation can all mimic kidney stone pain.

Can a UTI feel like kidney stone pain?

Yes, urinary tract infections can cause lower abdominal pain, pelvic pain, a burning sensation, and sometimes flank pain that can feel similar to kidney stone pain.

Can gas or IBS mimic kidney stone pain?

Yes, gas and irritable bowel syndrome can cause cramping, lower abdomen pain, and sudden pain that may feel like stone pain, especially when bowel habits change.

Can a muscle strain feel like kidney stone pain?

Yes, a back or abdominal wall strain can cause flank pain and sharp pain that worsens with movement and can mimic kidney stone pain.

When should emergency care be considered for flank pain?

Emergency care is recommended for flank pain with severe pain, fever or chills, vomiting with trouble keeping fluids down, trouble urinating, fainting, confusion, unusual weakness, or pregnancy with severe belly or pelvic pain.

Medical Disclaimer:

The information provided in this article is for educational and informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Please consult with your healthcare provider before starting any new dietary supplement, especially if you are pregnant, nursing, have a medical condition, or are taking other medications. Never disregard professional medical advice or delay in seeking it because of something you have read in this article.

References

  1. MedlinePlus. (2024, March 31). Kidney stones. U.S. National Library of Medicine. Retrieved February 2, 2026, from https://medlineplus.gov/ency/article/000458.htm

  2. National Institute of Diabetes and Digestive and Kidney Diseases. (n.d.-a). Diagnosis of kidney stones. National Institutes of Health. Retrieved February 2, 2026, from https://www.niddk.nih.gov/health-information/urologic-diseases/kidney-stones/diagnosis

  3. National Institute of Diabetes and Digestive and Kidney Diseases. (n.d.-b). Symptoms & causes of kidney stones. National Institutes of Health. Retrieved February 2, 2026, from https://www.niddk.nih.gov/health-information/urologic-diseases/kidney-stones/symptoms-causes

  4. National Kidney Foundation. (2025, July 24). Kidney stones. Retrieved February 2, 2026, from https://www.kidney.org/kidney-topics/kidney-stones

  5. NIH U.S. National Library of Medicine. (2026). Irritable bowel syndrome. In StatPearls. Retrieved February 2, 2026, from https://www.ncbi.nlm.nih.gov/books/NBK534810/

  6. S. R. Khan, Pearle, M. S., Robertson, W. G., Gambaro, G., Canales, B. K., Doizi, S., Traxer, O., & Tiselius, H.-G. (2016). Kidney stones. In Kidney Stones (pp. 1–? ). National Center for Biotechnology Information. Retrieved February 2, 2026, from https://www.ncbi.nlm.nih.gov/books/NBK278956/

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