Top 10 Cloudy Urine Causes. Cloudy urine causes are numerous, and can be different in each situation. Dehydration is one of the most common causes of cloudy urine symptoms. When your body does not have adequate amounts of water, your urine may become dark and cloudy. 2. Urinary Tract Infections. UTIs are common causes of urine cloudiness, and these infections may require medical attention to cure. Male urinary tract infections are not as common but do occur.