12 Signs and Symptoms of Urinary Tract Infection

3 Back or abdominal pain

This symptom is more frequent in upper urinary tract infections. This pain is due to the inflammation and distention of the urethra, bladder, ureters, and the capsule that covers and protects the kidneys.

Patients usually refer to pain in the flank or lumbar fossa on the most affected side, but they can experience pain in the lower abdomen too (usually women).


4 Involuntary relaxation of the bladder sphincter

This symptom is specially noticed in bigger children and adults, who can return to wetting their beds during the night. Sphincter relaxation is produced by the irritation of these muscles by bacteria.


Photo by Asier Relampagoe Studio

About Dr Aury Perozo 13 Articles
Aurelysmar Grimán Perozo is a doctor from the Centroccidental University "Lisandro Alvarado", with a diploma degree in occupational medicine, and certified in CPR (cardiopulmonary resuscitation), and advanced electrocardiography. In addition to her work as a doctor, she also writes as a freelancer in medical research.


The content of this website is not intended to be taken as a replacement for professional medical advice, care, diagnosis or treatment of a doctor, dietician, nutritionist or fitness instructor. If you experience any medical symptoms you should consult your doctor immediately for proper diagnosis and treatment.