Amniotic fluid depth of 68mm is normal in late pregnancy. The depth of amniotic fluid in late pregnancy is 68mm, which is normal. Late pregnancy is usually counted from the 28th week of pregnancy to the end of labor. Amniotic fluid can be measured by ultrasound, amniotic fluid will gradually increase with the increase in the number of weeks of pregnancy and will stop when it reaches a certain depth, the depth of amniotic fluid is the vertical depth of the amniotic fluid’s largest dark zone, and the depth of the amniotic fluid is between 20-80mm under normal circumstances. The depth of amniotic fluid is between 20-80mm under normal circumstances. Therefore, the depth of amniotic fluid of 68mm in late pregnancy is normal. If the amniotic fluid is too much or too little is not normal, during pregnancy, we should pay attention to regularly check the amount of amniotic fluid and the clarity of amniotic fluid, abnormal amniotic fluid, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for the relevant examination, with the help of the doctor to clarify the cause, and targeted treatment or therapy.