At a glance
- UTIs can cause painful or frequent urination and new wetting. Babies may have fever, poor feeding or vomiting without urinary symptoms. Smelly urine alone does not diagnose infection; a properly collected urine sample matters.
- Contact a clinician promptly for suspected UTI. When possible, urine is collected before antibiotics without delaying urgent care. Give prescribed antibiotics as directed and check culture results. Regular drinks, toilet breaks and treating constipation can help prevent recurrence.
- Fever with back or side pain, repeated vomiting, dehydration or a very unwell child needs urgent assessment. If symptoms are worsening or not improving within 48 hours of treatment, seek reassessment.
- Note the pattern below and bring your questions and current medicines to the visit. This record does not diagnose or choose treatment.
- This guide organizes warning signs; it cannot rule out illness. Follow the child’s clinician and local guidance.
What this can mean
UTIs can cause painful or frequent urination and new wetting. Babies may have fever, poor feeding or vomiting without urinary symptoms. Smelly urine alone does not diagnose infection; a properly collected urine sample matters.
Practical next steps
Contact a clinician promptly for suspected UTI. When possible, urine is collected before antibiotics without delaying urgent care. Give prescribed antibiotics as directed and check culture results. Regular drinks, toilet breaks and treating constipation can help prevent recurrence.
Notice, act, reassess
- Urination, pain, fever, drinking, sample/culture result and treatment
- Contact a clinician promptly for suspected UTI. When possible, urine is collected before antibiotics without delaying urgent care. Give prescribed antibiotics as directed and check culture results. Regular drinks, toilet breaks and treating constipation can help prevent recurrence.
- Fever with back or side pain, repeated vomiting, dehydration or a very unwell child needs urgent assessment. If symptoms are worsening or not improving within 48 hours of treatment, seek reassessment.
When to seek help
Fever with back or side pain, repeated vomiting, dehydration or a very unwell child needs urgent assessment. If symptoms are worsening or not improving within 48 hours of treatment, seek reassessment.
Call local emergency services for severe breathing difficulty, blue/gray lips, collapse, a seizure with failure to recover, or a child who is very difficult to wake. Do not delay to complete this tool.
A baby younger than 3 months with a temperature of 38°C (100.4°F) or higher needs urgent medical assessment, even if they look well. Do not delay assessment to try medicine or complete a diary.
Prepare for the visit
Note the pattern below and bring your questions and current medicines to the visit. This record does not diagnose or choose treatment.
- Urination, pain, fever, drinking, sample/culture result and treatment
Common questions
What does this pattern mean?
UTIs can cause painful or frequent urination and new wetting. Babies may have fever, poor feeding or vomiting without urinary symptoms. Smelly urine alone does not diagnose infection; a properly collected urine sample matters.
What can families do next?
Contact a clinician promptly for suspected UTI. When possible, urine is collected before antibiotics without delaying urgent care. Give prescribed antibiotics as directed and check culture results. Regular drinks, toilet breaks and treating constipation can help prevent recurrence.
When should we seek medical help?
Fever with back or side pain, repeated vomiting, dehydration or a very unwell child needs urgent assessment. If symptoms are worsening or not improving within 48 hours of treatment, seek reassessment.
What should I write down?
Urination, pain, fever, drinking, sample/culture result and treatment
Sources
Written for Pedemy in our own words from the sources above; checked October 2026. For education only, not medical advice. Pedemy is independent and not affiliated with or endorsed by the organizations cited.