Kidney infection symptoms (pyelonephritis) caused by a bacterial infection are marked by chills, fever, and a pain in the lower part of the back. Infection is typically with the bacterium E. coli and is more common in females than in males.
Typically infections arise from a urinary tract infection which progresses upwards to the kidneys. Certain complications which cause urine blockages or backflows of urine may also lead to kidney infections.
Diabetes and pregnancy are conditions which also lead to increased susceptibility to kidney infection. Infections may also arise form blood-borne bacterial infections which infiltrate and spread through the kidneys.
Kidney infection symptoms:
- lower back pain on side of infected kidney, or both sides if both kidneys infected
- painful, frequent urination
- tense abdominal muscle tone
Diagnosis is typically through examination and observation of symptoms. Blood and urine testing can confirm the diagnosis as well as to identify the infectious bacteria present. Typically in severe cases the cause of the infection is also investigated.
Treatment is typically with antibiotics. In severe cases with an underlying complication, surgery may be necessary to treat the causitive condition.