Urine redness is generally caused by what situation

The reasons for urine redness are as follows: First, intake of foods containing pigments, such as amaranth and red pitaya, will cause urine redness, mainly due to intake of red pigments contained in these foods, some of which will be excreted through urine, thus causing an increase in red pigment content in urine, which will cause urine redness. Second, urine containing blood can also cause urine redness, common diseases include urinary tract stones, cystitis, kidney diseases such as IgA nephropathy, glomerulonephritis, purpura nephritis, and may also be urinary tumors, such as bladder tumors, ureter tumors or kidney tumors. Urine hair caused by these diseases is generally characterized by hematuria. This situation requires active improvement of other related examinations, especially to exclude tumor diseases.