Follicles generally become more numerous after ovulation induction, but it is not entirely certain whether they will increase due to individual variability. Ovulation stimulation injection is a water-soluble injection containing luteinizing hormone and follicle-stimulating hormone, which accelerates the growth of follicles and increases the number of follicles in the ovaries of women after the injection, thus ensuring the normal discharge of eggs. However, for women with diminished ovarian function, the number of follicles may not increase after the injection due to the decrease in estrogen levels. For women who need to use ovulation injections, it is recommended that they go to a regular doctor in a timely manner, complete the relevant examinations, and under the guidance of a professional doctor through ovulation promotion, follicle development monitoring and other ways of active treatment, do not blindly use medication.