There are certain clinical tests and examinations that take place in order to detect the excess production of mucopolysaccharides. A urine test is done first in order to diagnose the MPS diseases. Enzyme essays that include the testing of different cells or the blood samples of the person in order to find out the enzyme deficiencies are a very important part of the examination. Through this particular step, the experts can actually make a very accurate and definitive diagnosis. In the case of prenatal diagnosis, the chorionic villus sampling process or amniocentesis process is used. These processes help in identifying whether the fetus is perfectly healthy or has been affected by the disorder.