👉 Ureteritis is a condition in which the urethra, the tube that carries urine from the bladder to the kidney, becomes inflamed. It can be caused by various factors such as injury, infection, or irritation of the urethra by substances like chemicals, bacteria, or viruses. The symptoms of ureteritis include pain in the lower abdomen or back, a fever, chills, nausea, vomiting, and blood in the stool.