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.
Types of UTIs. 1  Urethritis: an infection of the urethra. Urethritis manifests as painful or burning urination, but that is usually the only symptom. 2  Acute pyelonephritis: an infection in the kidney. A lot of times, these are caused by kidney stones, but they can also be caused by an infection elsewhere on the urinary tract that has gone internal. This is the more serious form of a UTI and should be treated immediately. Cystitis: a bladder infection.