Balloon labor does not necessarily have to be at night.
Balloon labor induction involves placing a balloon in the cervical canal and then injecting saline into the balloon to dilate the balloon, stimulate the cervix, and cause contractions to help the woman go into labor.
It usually takes 8 to 10 hours after the balloon is placed in the uterine cavity to have an effect and cause contractions. Therefore, if the balloon is used at night to induce labor, the pregnant woman will have contractions during the daytime of the following day, and it is more convenient to perform labor observation and delivery during the daytime as compared to the night time. Moreover, if balloon labor fails, it is also more favorable to take other measures during the day, such as: intravenous contractions and so on.
However, the balloon does not necessarily have to be used at night, the specific should be under the guidance of the clinician, according to the pregnant woman’s own situation and the hospital’s treatment arrangements for a comprehensive decision.