A follicle stimulating hormone of 40mIU/ml is severely high and generally makes it difficult to get pregnant. The follicular phase of a woman’s menstrual cycle is generally higher than the luteal phase, and peaks in the middle of the menstrual cycle at a range of 1.7 to 8.5 mIU/mI. Therefore, a woman’s follicle stimulating hormone of 40 mIU/ml is severely high, which indicates that a woman’s ovary function is poorer, and her chances of getting pregnant naturally are reduced. However, high follicle stimulating hormone does not mean that there is no possibility of getting pregnant, just that the chances of getting pregnant naturally are lower, and if necessary, ovulation induction therapy or assisted reproduction therapy can be considered. Therefore, high follicle stimulating hormone can have a significant impact on a woman’s fertility and it is recommended that she seek treatment.