Does flank pain moving downward mean a kidney stone?
A ureteric stone can cause flank pain moving toward the lower abdomen or groin in waves, but this pattern does not confirm a stone. Muscle problems, infection or other organs can cause similar pain. Symptoms and examination must guide assessment.
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Fever with pain matters
Fever or chills with flank pain may indicate infection, which can become dangerous with obstruction. Reduced urine, repeated vomiting or intolerable pain also needs urgent assessment rather than waiting for a stone to pass at home.
Not everyone needs a CT scan
Urine and blood tests and imaging are chosen according to age, pregnancy and clinical suspicion. Mention possible pregnancy, a single kidney or kidney disease. Ultrasound or other imaging is selected by balancing accuracy and risks.
Do not try to force a stone out
Avoid forcing enormous amounts of water during acute pain or self-prescribing herbs and antibiotics. Management depends on stone presence, size and location, infection and kidney function; pain relief and observation may not be sufficient.
Related reading: What can cause pain in the upper right abdomen?.