Urine examination during pregnancy, generally includes two kinds, one is urine HCG, the other is urine routine, for example, urine HCG examination, because in the early stage of pregnancy need to carry on the analysis of urine to determine whether there is pregnancy, as long as in about 12 days after the coitus to carry on the urine HCG test can determine whether it is pregnant, to determine whether there is pregnancy; for example, urine routine examination, if in the early stage of pregnancy For example, if in the early stages of pregnancy, vomiting, nausea or early pregnancy reaction is more serious, at this time can not eat, you need to carry out routine urine examination to determine whether the ketone body in the urine has increased. When the urine ketone body is increased, the early pregnancy reaction is very serious, should be appropriate to replenish a certain amount of energy to maintain the balance of body fluids, so as to avoid causing electrolyte confusion. At the same time, you can also look at the white blood cells have increased, applicable to the frequency of urination during pregnancy, urinary urgency, in order to rule out the existence of urinary tract infection.