Water rupture usually refers to premature rupture of fetal membranes, which is usually not advanced by internal examination. Common causes of premature rupture of fetal membranes are excessive amniotic fluid, abnormal fetal position, infection, etc. A common internal examination involves the use of a speculum to visualize the surface of the vagina and cervix, and a finger-pointing examination to determine cervical ripeness, cervical canal length, and whether the uterine opening is open. For pregnant women whose cervix is not dilated, the amniotic membrane is still located in the endocervix and cannot be felt in the vagina, so it will not lead to premature rupture of the water. Premature rupture of fetal membranes is usually due to various reasons that cause excessive pressure within the fetal membranes, which in turn leads to premature rupture of the membranes. For example, excessive amniotic fluid, abnormal fetal position, infection and so on. So premature rupture of amniotic membrane is usually not related to internal examination. If pregnant women experience premature rupture of membranes, it is recommended to consult a doctor in time, under the guidance of the doctor, complete the relevant examinations to clarify the cause of the disease and treat the symptoms.