We see a spike in patients coming in with severe back pain during the hotter months. The culprit? Dehydration. But it’s not just about “not drinking enough water”; it’s about how the heat changes your body chemistry.

How does heat cause kidney stones? When you sweat, your body loses fluids fast. If you don’t replace that fluid, your urine becomes concentrated. Instead of being pale yellow, it turns dark and acidic. In this environment, minerals like calcium and oxalate (which are normally flushed out) start to stick together, forming crystals. Over time, these crystals grow into stones.

Am I at risk? You might be if:

  • You work outdoors or exercise heavily in the heat.

  • You don’t drink enough water.

  • You’ve had a kidney stone before (the recurrence rate is high!).

  • You have Gout.

The "Warning Signs" to watch for:

  • A sharp, cramping pain in your lower back or side.

  • Pain that radiates to your groin.

  • Pink or reddish urine.

  • Feeling nauseous when the pain hits.

Your Prevention Plan:

  1. The “2 Litres” Rule: Aim for at least 2 litres of water a day. If you’re sweating, make it 2.5-3 Litres.

  2. Add Lemon: Fresh lemon juice contains citrate, which naturally helps prevent stones from forming.

  3. Watch the Salt: High salt intake puts extra strain on your kidneys.

When to see us: If you have severe back pain accompanied by nausea or vomiting, fever and chills, this is an emergency.
If you had a nagging, persistent discomfort or if you simply want a check-up to prevent future stones, book a consultation today.

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Africa Urology is a specialist practice founded by Dr. Viola Morolo, the first Black female urologist to graduate from the University of Pretoria.

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