Understanding Kidney Health: What Your Kidneys Do and How to Support Them

Your kidneys quietly do some remarkable work. Every day, they filter your blood, remove waste, balance your body's fluids and minerals, help regulate blood pressure, and support red blood cell production. They're at the centre of how your body maintains itself, which makes understanding a little about kidney health well worth your time.

What Your Kidneys Do

Positioned just below the rib cage on either side of your spine, your kidneys work continuously to keep your blood chemistry in balance. They filter waste and excess fluid out through urine, regulate key minerals like sodium and potassium, and produce hormones that support bone health and blood production.

Because the kidneys are involved in so many processes, changes in kidney function can sometimes show up in unexpected ways. This is one reason why routine monitoring is useful, particularly for people with certain health conditions.

Symptoms Worth Mentioning to Your GP

Kidney concerns don't always present with obvious symptoms, but there are some signs that are worth discussing with your doctor if they persist:

• Feeling more tired than usual or having difficulty concentrating
• Swelling in the feet, ankles, or around the eyes
• More frequent urination, particularly overnight
• Changes in urine appearance, such as foamy, darker than usual, or discoloured
• A dull, persistent ache in the lower back

These symptoms can have a range of causes, and your GP is best placed to assess what's relevant for you. If something has been bothering you, it's always worth bringing up at your next appointment.

Everyday Habits That Support Kidney Health

Many of the things that are good for your overall health are also good for your kidneys. Staying well hydrated, around 2 litres of water per day for most adults, helps your kidneys work efficiently and may reduce the risk of kidney stones.

A balanced diet that's not too high in salt or heavily processed foods, regular physical activity, not smoking, and keeping alcohol within recommended guidelines all contribute to healthy kidney function over time.

It's also worth being mindful of anti-inflammatory pain relievers like ibuprofen. When used frequently or at high doses, NSAIDs can affect kidney function. Your GP can help you explore suitable alternatives if you rely on these regularly.

Routine Checks Are Available

A simple blood test and urine sample can give your GP a clear picture of how your kidneys are functioning. You don't need to have any symptoms to request this. It's especially worthwhile if you have diabetes, high blood pressure, or a family history of kidney disease.

At Family Medical Practice, kidney health checks are part of our routine preventive care. Our teams in Kirrawee, Woolooware, and Kurnell are happy to help you understand where things stand and how to support your kidney health going forward.