1. Urinary stones. The elderly are more likely to have urinary stones, which can lead to blood in the urine, due to significant calcium loss and reduced physical activity. The presence of stones can be determined by urinary ultrasound, and treatment can be arranged according to the size and location of the stones.
2. Prostatic hyperplasia. If the patient is male, he may develop benign prostatic hyperplasia as he gets older and his hormones change. The enlarged prostate gland rubs and irritates the capillaries on the prostate mucosa, which can easily cause bleeding and mixes with urine to cause blood in the urine.
3. Urinary tract infections. The elderly have a reduced immunity to pathogens such as bacteria and fungi, and are more likely to develop urethritis and cystitis. These diseases may trigger blood in urine.
4. Tumor diseases. The probability of tumor disease increases with age, and further tests are needed to determine the cause.