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Kidney Infection Symptoms? Emergency Care in Beaumont, TX

A bladder infection usually means burning and frequent peeing. When the infection reaches the kidneys, people often add fever, chills, pain in the side or back, and nausea. A kidney infection needs prompt treatment, and some people need care the same day. Eastex Emergency Room in Beaumont is open 24/7 for adults and children.

Fever and chillsSide or back painBurning when peeingNausea and vomiting
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Go to the ER now for these signs

These can mean the infection is severe, spreading to the blood, or that you cannot take antibiotics by mouth.

  • High fever with shaking chills and flank pain
  • Vomiting so you cannot keep fluids or pills down
  • Confusion, especially in an older adult
  • Fast heartbeat or fast breathing, dizziness or fainting
  • Very little urine or none at all
  • Pregnancy with fever or back pain
  • Diabetes, a weak immune system, one kidney or a urinary catheter, with fever
  • Not improving after 48 hours on antibiotics

Call 911 if someone is confused, very drowsy, has cold or mottled skin, or is struggling to breathe. These can be signs of sepsis.

Symptoms

How a kidney infection differs from a bladder infection

Both can cause burning and urgency. Whole-body signs, such as fever and vomiting, and pain in the side or back point toward the kidneys.

  • Fever, often with chills or shaking
  • Pain in the side, back or groin
  • Burning or pain when peeing
  • Needing to pee often or urgently
  • Cloudy, bloody or bad-smelling urine
  • Nausea and vomiting
  • Feeling very tired or unwell
  • In older adults: new confusion, sometimes as the main sign
  • In young children: fever, poor feeding, irritability or vomiting
  • Belly pain

Possible Causes

Why kidney infections happen

Most kidney infections start as a bladder infection that travels up toward the kidneys.

Bladder infection that spreads

Bacteria, most often from the gut, move up from the bladder to one or both kidneys.

Something blocking urine flow

A kidney stone, enlarged prostate or other blockage lets bacteria grow.

Higher-risk health conditions

Pregnancy, diabetes, a weakened immune system, catheters and older age raise risk.

Not every fever with back pain is a kidney infection: stones, back strain, pneumonia, appendicitis and other problems can look similar. A urine test is a key part of the answer, but the physician puts it together with your exam and other tests before deciding on treatment.

Your Evaluation

How the ER evaluates a possible kidney infection

The physician checks how sick the infection is making you, looks for a blockage, and picks a treatment you can tolerate.

  1. Vital signs. Fever, heart rate, breathing rate and blood pressure help show how serious the infection is.
  2. Exam. Tenderness over the kidneys, belly exam and hydration.
  3. Urine tests. A urinalysis and usually a urine culture to identify the bacteria.
  4. Blood tests. Blood counts, kidney function and, if sepsis is a concern, more tests.
  5. Imaging if needed. Ultrasound or CT can look for a stone, blockage or abscess.
  6. Treatment. Antibiotics, fluids and medicine for pain and nausea. Many people go home on antibiotics with follow-up.

Testing available on site

Lab testing

Blood and urine tests run on site.

Ultrasound

Imaging without radiation for many abdominal and soft-tissue questions.

CT scan

Cross-sectional imaging when the exam calls for it.

IV fluids and medicine

Fluids and medicines through an IV when you need them.

The tests above are the diagnostic services Eastex ER lists on its own service pages. Not every patient needs every test. The emergency physician decides what to order based on your history and exam, and a normal result does not rule out every cause. Always follow your discharge instructions and the follow-up plan you are given.

When you may need a hospital

Eastex ER is a freestanding emergency room without inpatient beds. People with sepsis, a blocked and infected kidney, pregnancy with a kidney infection, or who cannot keep antibiotics down often need hospital care. When that is the case, the team stabilizes you and arranges transfer.

  • If you go home, take every dose of your antibiotic and follow up as instructed, often within a few days.
  • Your urine culture result may change your antibiotic. Make sure the ER has a working phone number for you.

Getting better after a kidney infection

Most people improve within a few days of starting the right antibiotic. Drink fluids as advised, rest, and take every dose even after you feel better. If your urine culture shows the bacteria are resistant to your antibiotic, you may be contacted to change it, so keep your phone on.

Come back if

  • Fever is not improving after two to three days of treatment.
  • You vomit and cannot keep the antibiotic down.
  • Pain gets worse, or you develop confusion, a racing heart or trouble breathing.
  • You are peeing much less than usual.

Reducing repeat infections

Your doctor may look for a cause if you have repeated urinary infections, such as a stone or another blockage. Common advice includes drinking enough fluids and not holding urine for long periods. Discuss any prevention plan with your own doctor.

Pregnancy and kidney infections

Kidney infection in pregnancy can affect both the parent and the pregnancy and usually needs prompt treatment and close follow-up. Fever or back pain in pregnancy should be checked the same day.

Planning Your Visit

Before you come in

Bring a list of recent antibiotics and any allergies to medicines. That helps the team choose the right treatment.

Find us

5550 Eastex Fwy, Suite C, Beaumont, TX 77708. Open 24 hours, every day. Call 409-800-1100.

What to bring

Photo ID, insurance card and a list of your medicines and allergies, if you can grab them safely.

Insurance

See which plans we work with and what to expect as a freestanding emergency room.

Billing

How emergency visits are billed, and who to contact with questions about a bill.

FAQs

Kidney infection questions

Short answers to questions people ask before they come in.

Not sure what to do?

If symptoms are severe or getting worse, call 911. For questions about coming in, call Eastex ER any time.

409-800-1100

A mild kidney infection in a healthy adult who can keep pills down may be treated by a primary care doctor or urgent care. Vomiting, high fever, confusion, pregnancy or other health conditions are reasons to use an emergency room.

Many people start to feel better within two or three days. If you are not improving, or you get worse, return for re-evaluation.

It can be. Without treatment it can spread to the blood and cause sepsis, or damage the kidney. With prompt treatment, most people recover fully.

Infections can affect thinking in older adults, sometimes before other symptoms show. New confusion should always be checked.

Not always. Imaging is used when a stone or blockage is suspected, when you are very sick, or when you are not improving with treatment.

Keep Reading

Related guides

More from Eastex ER on deciding where to go and what to expect. Browse every guide in our health resources library.

Fever with back pain? Get evaluated today.

Eastex Emergency Room is open 24/7 at 5550 Eastex Fwy, Suite C, Beaumont, TX 77708. Walk in or call 409-800-1100. For a life-threatening emergency, call 911.

Sources

  1. MedlinePlus: Urinary Tract Infections
  2. NIDDK: Kidney Infection (Pyelonephritis)
  3. CDC: About Sepsis

Last updated:

This page is general education and does not replace an exam by a clinician. If you think you are having a life-threatening emergency, call 911.