IRCT20160418027464N2 IRCT 2019-03-12 Iranshahr University of Medical Sciences Effect of Lubricant gel on labor consequences. Effect of using the lubricant gel during the active phase of the first stage of the labor on the length of delivery and perineal trauma in primiparous women. 2019-03-14 anticipated 110 Complete https://irct.ir/trial/22486 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Factorial, Purpose: Prevention, Randomization description: A sealed package containing dedicated interventions will be created based on a randomization list for each patient, Blinding description: The data analyzer will not be aware of the data codes. N/A outcome of delivery. Intervention 1: Intervention group: In the intervention group, from the time of the 4 cm dilatation of the cervix to the second stage of delivery, 5 ml of water-soluble Lubricant gel produced by Shafa company will be used at each vaginal examination. Intervention 2: Control group: In the control group, routine care will be provided. Yes - There is a plan to make this available What will be shared: Sharing will be in the form of the article. When: One year after the end of the plan. To whom: Only available to scholars working in academic and academic institutions. Conditions: It will be possible to use the data by sending the email to the responsible author. Where to obtain: Corresponding to the author of the article. How to obtain: After sending the email to the responsible author, it will be answered within a week. Comments: Use of data will only be possible in academic approved schemes.