First things first: what is FSH?
FSH, known as the follicle-stimulating hormone, is a pituitary hormone that stimulates the recruitment, growth, and development of ovarian follicles.
FSH is commonly used in medical practice to assess ovarian function and confirm the transition to menopause.
What is a normal FSH range?
FSH levels vary depending on the person!
Generally speaking, your FSH levels will be at <10 mIU/mL during your non-fertile phase. However, this number will increase during the beginning of your LH surge and increase progressively to its peak on your ovulation day. On this day, FSH levels will increase to 30mIU/ml or higher.
The range of detection for Mira Wands is 1-200 mIU/ml.
Average Ranges for FSH hormone are:
| Follicular phase | Ovulatory phase | Luteal phase |
| 3-10 mIU/mL | 10-30+ mIU/mL | 2-5 mIU/mL |
What does a high level of FSH mean?
Continuously high levels of FSH (>30 mIU/mL) indicate that an individual is approaching menopause. If FSH consistently measures above 10 mIU/mL on day three of a cycle, it may be a sign of diminished ovarian function.
When should I test for FSH?
Generally, we recommend following the schedule provided in the app, which adapts to your unique patterns, needs, and goals.
However, if you are using menopause mode, we can recommend the following:
If you have regular cycles:
- Start testing with Ovum Wands on the 2nd day of your cycle
- Test for 4 consecutive days
- Repeat for 2 cycles in a row
If you have irregular cycles:
- Start testing with Ovum Wands on any day of the month
- Test for 5 consecutive days
- Repeat for 2 months in a row
Note that hormone treatments may affect results.
In doubt about your FSH values on the Mira app? Remember that you can always share your results with one of our certified Fertility Coaches. They will help you understand your Mira charts.
Disclaimer: Fertility coaches do not provide diagnoses, treatment, or medication prescriptions. Our services are designed to offer education, promote well-being, and extend emotional support. Fertility coaches do not have access to your Mira results. You will be required to upload your Mira results prior to your appointment.
A little extra support from an expert can go a long way
Book an online consultation with one of our Hormone Health Coaches.
Schedule NowHow many FSH surges occur during the menstrual cycle?
There are typically 3 FSH surges within the menstrual cycle. The first one is at the beginning of the cycle (typically on day 3 of the cycle) to stimulate follicles to grow, the second one occurs around ovulation along with LH peak to trigger ovulation, and the third one occurs 2-3 days before the menstrual period to recruit follicles for the next cycle.
Can a surge in FSH help to predict ovulation?
Yes. According to one study, the second FSH peak occurs on average 2 hours before ovulation.
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