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Symptoms · Kidney Pain Kidney pain? Do not wait to get it checked.

An ache or sharp pain in your back, side or groin can be a sign of a kidney stone, infection or blockage - however with the right investigation the cause is usually found quickly. Seen within days at 4 private London hospitals. No GP referral needed.

Mr Maneesh GheiAssessed personally by Mr Maneesh GheiConsultant Urological Surgeon · GMC 5208045BupaPlatinum Consultant
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In short

Kidney pain, or renal pain, is discomfort felt in the lower back, side or groin, often caused by a kidney stone, a kidney infection or a blockage in the urinary tract. It can range from mild to severe and should always be assessed promptly, particularly alongside fever, blood in the urine or pain that will not settle.

Medically reviewed by Mr Maneesh Ghei·GMC 5208045·September 2026

Seek urgent help if any of these happen alongside kidney pain:

A high fever with chills, severe pain that will not subside, significant blood in your urine, or a sudden inability to pass urine - these can signal a kidney infection or blockage that needs prompt treatment.

What Causes It

The common causes

Kidney stones

Hard mineral deposits that can move into the urinary tract, causing intense pain and blocking urine flow.

Learn more →

Kidney infection (pyelonephritis)

An infection that has travelled to the kidneys, causing inflammation, fever and chills.

Kidney blockage (obstruction)

Often due to stones, tumours or an enlarged prostate, which can impair kidney function.

Kidney cancers and tumours

Abnormal growths that can cause pain alongside blood in the urine or unexplained weight loss.

Simple, Fast, Clear

From symptom to answer in 3 steps

1

Book a Consultation

See Mr Ghei at one of 4 London private hospitals. No GP referral needed. Most patients are seen within a few days of enquiry.

2

Assessment

A urine test, bloods and imaging such as an ultrasound or CT scan, arranged promptly to find the cause.

3

The Right Treatment

From antibiotics and hydration to stone removal or, where needed, referral onto a cancer pathway.

Mr Maneesh Ghei, Consultant Urological Surgeon
GMC 5208045 · FRCS (Urol)
Your Consultant

Mr Maneesh Ghei

MBBS, MS, MRCSEd, MD (UCL), FRCS (Urol)

Mr Ghei is a consultant urological surgeon with a specialist focus on prostate diagnosis and treatment. He holds a Research MD from University College London and is a Fellow of the Royal College of Surgeons.

In his NHS role he is Cancer Lead and Academic Lead at Whittington Hospital London - one of a small number of consultant urologists in the UK to hold both positions. Every private patient is cared for by Mr Ghei personally, from first appointment through to any treatment that follows.

Cancer Lead · Whittington Hospital BupaPlatinum recognised consultant English · Hindi · Punjabi · Urdu
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Common Questions

Before you book

Is kidney pain always a kidney stone?
No - kidney stones are a common cause, but kidney pain can also come from an infection, a blockage or, less commonly, a tumour. A urologist can assess your symptoms and arrange the right tests to find out.
When is kidney pain an emergency?
Treat it as urgent if you have a high fever with chills, pain that will not subside, significant blood in your urine, or you suddenly cannot pass urine at all. These can indicate a serious infection or blockage.
How is kidney pain investigated?
Investigation usually starts with a urine test and blood tests, followed by imaging such as an ultrasound or CT scan if the picture suggests it is needed.
How quickly can I be seen?
Most patients are seen within a few days of enquiry, with no GP referral needed. For a high fever, severe pain or inability to pass urine, go to A&E rather than waiting for an appointment.
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