What's going on with the pale yellow urine?

The urine discharged is light yellow, drink less water or be in high temperature environment for a long time, sweat more when the color of urine is concentrated, urine may become red, yellow, this is a physiological phenomenon, will not be accompanied by other obvious abnormalities, drink more water can improve the color of urine. Normal will be accompanied by frequent urination, urgency, pain in urination and pain in both kidney areas and lower abdomen. It is considered to be related to eating, such as eating pitaya, orange, or darker drugs. Oral anti-tuberculosis drugs such as rifampicin capsules will make urine dark red.