Urine naturally has an odor, but it is usually not very strong smelling. Strong smelling urine is usually not a cause for concern. Dehydration occurs when you do not drink enough fluids. If you are dehydrated, you may notice that your urine is a dark yellow or orange color and smells like ammonia.UTI commonly cause urine to smell strong. A strong urge to urinate and a burning sensation upon urination are the most common symptoms of a UTI.Less common causes include
diabetes ,
liver problem. Get your urine sample analysis done and consult urologist.