HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Got a uti last sunday, took meds, now wednesday, now chills fever and back aches. chances of kidney infection? how long do they last?thx

A doctor has provided 1 answer

High risk for kidney: You need to be on prolonged antibiotics. If you have a fever there is risk for serious complications and to be seen in the er for IV therapy.

Answered 6/14/2019

5.6k views

Thank

Related Questions

A member asked:

Im on bactrum for a uti on fourth day of medicine. now i have a fever, lower back pains, chills and fatigue. is it flu or something else?

A doctor has provided 1 answer

A member asked:

Persistent UTI for a few weeks. Last night I woke with nausea and fever, but today I feel fine with mild symptoms of uti. Kidney infection?

A doctor has provided 1 answer

A member asked:

UTI, shaky, chills, sharp pain in lower back and stomach, nausea, loss of appetite, fever. Is this a kidney infection and is it serious?

A doctor has provided 1 answer

A member asked:

Is it possible to have kidney infection NO fever? Bad nausea and back pain but two UTI tests negative no UTI symptoms like painful urinating?

A doctor has provided 1 answer

A member asked:

I took Bactrim (sulfamethoxazole and trimethoprim) to treat UTI for three days. I am worse. Now have Vomiting, nausea, cramps, burning urination, fever, and low temps of 96.4. What could this be? Could it be a kidney infection?

3 doctors weighed in across 2 answers

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

How do you know if a lower back ache is muscular skeletal or a kidney infection ? No fever or UTI symptoms.
Back pain for several days, was on Nitrofurantoin mono. Couldn't finish the last pill. Went back for uti and was prescribed Cephalexin liquid medicine. Just took first dose a few hours ago. Now have a low grade fever and nausea bad. Kidney infection?
Been on Nitrofurantoin, Cephalexin, and Ciprofloxacin(last day) for uti. Low grade fever past 2 weeks, nausea, little appetite, pressure in lower back between hips, rib cage, side and now have blood while urinating for 4 days. Kidney infection?
Does kidney infection always have fever. ? I am on bactrim (sulfamethoxazole and trimethoprim) for UTI for 2 weeks. Still having some urgency pain and now have periodic back pain.
Had a uti last month.then infection cleared. Kidney area of back still sore and feels irritated. What is it?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.