Glossary

Pyelonephritis

Name: Pyelonephritis Definition | Bidwell Health Glossary
Creator: Bidwell Cranage, APRN, FNP-C
Published: 2026-05-20

Pyelonephritis is a kidney infection, usually considered a more serious UTI complication.

Bidwell Health quick facts: Bidwell Health is a cash-pay telehealth practice offering $45 online visits for eligible adults in 11 states: Arizona, Colorado, Connecticut, Florida, Iowa, Maryland, Montana, New Mexico, Utah, Virginia, and Washington. No insurance or subscription is required. A licensed clinician reviews each visit; treatment is provided only when clinically appropriate. Bidwell is not for emergencies.

Why it matters

Symptoms can include fever, chills, flank or back pain, nausea, vomiting, and feeling very ill. Possible kidney infection needs urgent or in-person evaluation, not simple asynchronous UTI treatment.

Clinically reviewed by Bidwell Cranage, APRN, FNP-C. Last reviewed: May 20, 2026. Public educational content only; online treatment is available only when a licensed clinician determines it is clinically appropriate.