Cut to Cure
Cut to Cure
Monash University Surgical Interest Group (MUSIG)
Stones and Laser Beams: An Approach to Loin Pain
27 minutes Posted Feb 22, 2026 at 9:40 am.
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Show notes

In this episode Jonty and Rory cover an approach to Loin Pain!


As mentioned, please find the handy LOIN PAIN mnemonic below:


L: Life-threatening

These are key red flag conditions you don’t want to miss:

  • Bilateral urinary tract obstruction

    • Is the pain bilateral?

    • Urinary output?

    • History of retention?

    • O/E any masses?

    • Cardinal cancer symptoms, LOW, Fatigue

  • Urosepsis

    • Fever

    • Mental state 

    • FBE

  • Ruptured ectopic

    • Possibility of pregnancy?

    • Urine/serum B-HCG + US

O: Obstruction (most likely)

  • Stones

  • Strictures 

  • Functional

I: Infection

  • Pyelonephritis

N: Neoplasms

  • Renal or other

P: Primary renal

  • Infarction

  • PKD

A: AAA/Vascular

  • Smoking, Hypertension, Metabolic syndrome

I: Irradiated pain

  • Think GI + Gynae

N: Neuro

  • Radiculopathy

S: Skeletal

  • Strain