What can cause urine to turn reddish or golden in colour?

Urine can turn reddish due to the presence of blood (hematuria), which may result from infections, kidney stones, or other medical conditions. Certain foods, like beets and berries, as well as medications such as rifampin, can also cause a red hue. Golden or dark yellow urine often indicates dehydration, where concentrated waste products intensify the color. Additionally, certain vitamins, particularly B vitamins, can impart a bright yellow or golden tint to urine.