The follicle grows again after the egg-breaking injection, if ovulation occurs within 24-48 hours, there is no effect, if ovulation does not occur, you need to go to the hospital to check the ultrasound and hormone. The commonly used clinical injection refers to human chorionic gonadotropin, which is mainly used to induce follicle maturation and ovulation. The injection is usually given after the follicle has grown to about 16mm-18mm on ultrasound. Ovulation will occur within 24-48 hours after the egg-breaking injection, and the follicle undergoes ovulation and no longer grows. If the follicle does not rupture but continues to grow after the injection, it is possible that the woman has endocrine disorders, such as unruptured follicle luteinization syndrome, and it is recommended to go to the hospital to clarify whether the follicle wall is too thick by ultrasound, and also through the measurement of hormone levels in the blood and other auxiliary tests to clarify whether there are endocrine disorders.