Redness of urine after consuming dragon fruit in children is generally 1 day time to return to normal, the specific time varies from person to person. Red dragon fruit contains a lot of red pigment, also known as anthocyanins, not easily absorbed by the body, can be excreted through the urine, resulting in red urine. Therefore, the redness of urine after the consumption of dragon fruit in children is the result of the ingestion of pigments excreted through the urine, which is a normal phenomenon, and its metabolic cycle is about 12-24 hours. It is recommended to drink more warm water and urinate a few times, usually after 12 hours the color of urine will slowly become lighter, and about 24 hours will show the normal color of urine. However, if the urine color is still red or accompanied by other symptoms after more than 24 hours, it is recommended to go to the hospital in time for examination, in order to exclude urinary bleeding disorder. In addition, parents need to pay attention to avoid excessive consumption of dragon fruit, so as not to aggravate the burden on the stomach and intestines, resulting in abdominal pain, diarrhea or indigestion and other symptoms.