There are a variety of cloudy urine causes. If your urine color is cloudy or looks like milky urine, it could be nothing to worry about … or it could be a sign of a serious illness.Keep in mind that cloudy urine is a symptom and not an illness by itself.here are a variety of cloudy urine causes. If your urine color is cloudy or looks like milky urine, it could be nothing to worry about … or it could be a sign of a serious illness.