WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms bleeding, diarrhea and pain or discomfort including Food poisoning, Irritable bowel syndrome, and Gastroenteritis. There are 79 conditions associated with bleeding, diarrhea and pain or discomfort.
At least half of women have experienced the discomfort with urination caused by a urinary tract infection: painful, urgent, or frequent urination. Pyelonephritis may start with similar symptoms. However, once the infection has spread to the kidney, signs of more severe illness usually result.
Pyelonephritis: This is an infection of the kidneys. Usually this is the result of an infection that has spread up the urinary tract, or possibly from an obstruction in the urinary tract. When an obstruction in the urinary tract occurs, this can cause urine to back flow into the ureters and kidneys.