A Foley balloon, also known as a Foley bulb, is a medical device used primarily to induce labor during pregnancy. It is a catheter-like flexible tube with a small inflatable balloon at its tip. During the procedure, the healthcare provider inserts the Foley balloon catheter through the cervix into the uterus and then inflates the balloon with sterile saline solution or water. The inflated balloon puts gentle pressure on the cervix, which helps to dilate (open) and soften it, encouraging the early stages of labor to begin. The pressure from the balloon on the cervix can help jumpstart labor by promoting cervical dilation and stimulating the release of hormones that stimulate contractions. This method is often used when labor induction is medically necessary and is considered a safe and effective way to prepare the cervix for labor. The Foley balloon usually falls out on its own once the cervix is dilated to about 3 to 5 centimeters, and active labor typically follows within 12 to 24 hours. It is a relatively quick procedure but the full induction process can take hours to days. This device is sometimes used alongside other labor induction methods like medications or breaking the water to progress contractions. The Foley balloon method is valued for being a mechanical, drug-free option to induce labor.