The application of evening primrose oil near the opening of the uterus is a practice sometimes employed with the intention of softening the cervix. This involves introducing the oil, often in capsule form or via a syringe, into the vaginal canal, positioning it as close as possible to the cervical os. The aim is to allow the oil’s components to potentially influence cervical ripening.
The rationale behind this practice stems from the belief that the gamma-linolenic acid (GLA) present in evening primrose oil can be converted into prostaglandins, which are hormone-like substances known to play a role in preparing the cervix for labor. Historically, various methods have been explored to naturally encourage cervical softening, and the use of evening primrose oil represents one such approach. The potential benefits are viewed as contributing to a more favorable environment for the onset of labor.