What causes old people to urinate blood?

The causes of urinary blood in the elderly include dietary effects, infectious diseases, blood diseases, etc.

1. Dietary effects

in a short period of time to eat a large number of red pitaya, beet and other foods, which contain a large amount of pigment, not easily absorbed by the gastrointestinal tract, can be discharged with urine, manifested as pseudohematuria.

2. Infectious diseases such

as cystitis, urethritis, pyelonephritis, etc., will lead to a large amount of blood exudation, mixed with urine, resulting in hematuria.

3. Blood diseases such

as leukemia, aplastic anemia, etc., can lead to thrombocytopenia, coagulation disorders, blood exudation, and then cause hematuria.