Blood in the urine all of a sudden may be caused by urinary system infection, trauma, urinary system stones, urinary system tumor and so on.
1. Urinary system infections: Infectious diseases such as cystitis, urethritis, pyelonephritis, etc. may lead to blood in the urine all of a sudden.
2. Traumatic injury: irritation from external pressure, bumps, car accidents, falls, etc. may also lead to blood in the urine all of a sudden.
3. urinary stones: for example, ureteral stones, kidney stones and other diseases, there may be changes in the location of the stones will stimulate the local capillaries, resulting in sudden blood in the urine.
4. Urinary system tumor: for example, bladder cancer, urethral tumor, kidney tumor and other diseases, can also lead to sudden blood in the urine.
There may be other reasons for blood in urine suddenly, so you need to go to the hospital in time for examination to find out the cause of the disease.