A simple way to keep an eye on your health is to watch the color of your urine. Basic yellow is normal since urine takes on color from compounds in the bladder. It can become lighter or darker due to hydration which can dilute the color or it can indicate illness. If it’s dense, has a significant change in color, or has strong odor, it might indicate a health condition. Keeping an eye on the color of urine can be a good way to be aware of issues that might need medical care.