The short explanation
Please do not wait until Monday. Fever with shivering, back or side pain and vomiting together with urine symptoms can mean the infection has spread from the bladder to a kidney. A kidney infection needs prompt assessment and treatment, and in some people it can lead to a serious blood infection. Because she is vomiting, she may not be able to keep fluids or medicines down, which is another reason she needs to be seen today. A government hospital casualty, a nearby hospital emergency department or a doctor who can examine her today is the right place, not a pharmacy.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Older age, diabetes, kidney stones, a recent catheter, or any kidney problem make a kidney infection more serious and more likely to need hospital care, sometimes with treatment through a drip.
- Doctors will usually check her temperature, pulse and blood pressure, test her urine and blood, and may order an ultrasound. Taking along a list of her usual medicines and any recent test reports saves time.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This answer cannot say how serious her infection is or what treatment she needs. That depends on an examination and tests done today.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Does this look like a kidney infection, and does she need to stay in hospital?
- Will a urine culture be sent before treatment starts?
- Does she need a scan to check for a stone or blockage?
- What signs at home mean we should bring her back immediately?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to the nearest emergency department now if she becomes drowsy or confused, faints, is breathing fast, has cold or mottled skin, or passes very little urine.
Get help the same day
- Take her to be seen today for fever, shivering, back pain and vomiting with urine symptoms, even if she seems to settle for a while.
Raise it at a routine appointment
- After she recovers, book a follow-up to discuss why the infection happened and whether any further tests are needed.
Sources
The evidence this explanation is built on.
- Kidney infection NHS
- Urinary tract infection — adults MedlinePlus (NIH)
- Urinary tract infections (UTIs) NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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