Purple urine may be caused by physiological factors, and may be related to pathological factors such as inflammation of the urinary system, stones, tumors and renal amino aciduria.
1. Physiological factors: such as eating a lot of purple kale, blueberries, dragon fruit or drinking a lot of purple pigmented beverages, etc., the pigment in the food may be excreted with the urine, which will cause the symptoms of purple urine. Usually no treatment is needed, and the symptoms can be gradually relieved after drinking more water and urinating.
2. Pathological factors: including urinary inflammation, urinary stones, urinary tumors, renal amino aciduria.
(1) Inflammation of the urinary system: such as urethritis, cystitis, etc. After the urinary system is infected by bacteria and other pathogens, the inflammatory factor can produce irritation to the urethral mucosa or bladder, which further leads to mucosal damage and bleeding, and can cause hematuria, which can be manifested as the symptom of purplish urine.
(2) urinary stones: such as kidney stones, bladder stones, urethral stones, etc., urination stone activity can cause local mucosal damage and bleeding, so that the color of urine changes, which can be manifested as symptoms of purple urine.
(3) Tumor of urinary system: such as urethral tumor, bladder tumor, etc. When cancer cells invade into urethra or bladder mucosa, it leads to the destruction of its normal tissue structure, causing hematuria, which can also cause the symptom of purplish urine.
(4) Nephrogenic amino aciduria: it is mainly related to the obstacle of amino acid transport in proximal renal tubules, which causes a large amount of amino acid to be discharged through urine, resulting in amino aciduria, which can be manifested as purple urine.
After eliminating the physiological factors, if the symptoms of purple urine are not relieved for a long time, it is recommended to go to the hospital in time to find out the cause of the problem and then actively treat it, so as to avoid delaying the condition.