Uneven follicle size during ovulation induction should be dealt with on a case-by-case basis, such as continuing ovulation, aspiration of the follicles, or canceling the current cycle. Ovulation promotion is to ensure that IVF can get enough quality eggs during egg retrieval. Uneven follicle sizes can occur during ovulation promotion and should be dealt with on a case-by-case basis. If the follicles are uneven in size during ovulation, most of the dominant follicles are developing normally, and only a small part of them are lagging behind, you can continue to promote ovulation with the dominant follicles as the main focus, and use ovulation-promoting drugs such as urotropin under the guidance of the doctor, and follow the doctor’s instructions strictly in the use of the medication to avoid under or overdosing. If the follicles are uneven in size, only a single follicle or 1~2 follicles develop faster, while the other follicles develop slower, the fast-growing follicles can be aspirated and then continue to promote ovulation treatment. Uneven follicle size during ovulation is very unbalanced, you can cancel the current cycle and consider ovulation again next time. Uneven follicle size during ovulation is recommended to go to the hospital for examination and let the professional doctor to guide the correct plan, do not self-medication, in order to avoid adverse effects.