What are the symptoms indicating the need for hospitalization in pyelonephritis patients?

The symptoms indicating the need for hospitalization in patients with pyelonephritis primarily involve the signs of severe illness or complications that require immediate medical intervention. Nausea, vomiting, and dehydration are critical indicators. Vomiting can lead to significant fluid loss, directly causing dehydration, which can impair kidney function and overall health. Hospitalization is often necessary to manage these symptoms effectively, improve hydration, and ensure the patient receives appropriate treatment, such as intravenous fluids and antibiotics.

While other symptoms listed may be associated with pyelonephritis, they do not necessarily indicate a need for hospitalization. Frequent urination and urgency are common urinary tract infection symptoms but do not reflect the severity of the condition. Severe stomach pain and fever can be serious but depend on the overall clinical context; symptoms must be evaluated together with other findings before determining the need for hospitalization. Insomnia and fatigue may occur but are typically not indicators of a severe condition requiring hospital care.