If you have red urine with no foam, it is advisable to first visit a hospital and treat the condition according to its cause. In addition to active treatment, you can live with less food that can easily cause red urine, such as red dragon fruit, blackberries, amaranth, beets and mushrooms, and check that you are not taking any medication that can cause haematuria.
It is also advisable to drink plenty of water and to exercise moderately, avoiding too strenuous exercise. Urinate promptly when you feel the urge to urinate and avoid holding urine too often.