Originally published: 16.JUL.2020
Last updated: 6.NOV.2023
Follicle-stimulating hormone, or FSH, is produced by the pituitary gland. It plays a crucial role in the reproductive system in men and women; regulating the functions of both the ovaries and the testes and playing an important part in pubertal development [1].
FSH levels fluctuate throughout the menstrual cycle and peak just before ovulation. That said when FSH levels dip below a normal range for a long period, it can lead to a whole host of symptoms including:
- Irregular menstrual cycle
- Low libido
- Hot flashes
See also: Can You Promote Hormone Balance?
What Are The Symptoms of Low FSH Levels?
A lack of FSH can affect the reproductive system and cause symptoms such as:
- Irregular menstrual cycle: One of the primary indicators of low FSH levels in women is irregular menstrual cycles. FSH is instrumental in the maturation of ovarian follicles, and reduced levels can disrupt the normal menstrual cycle, leading to irregular periods or even amenorrhea (absence of menstruation).
- Low libido: Individuals with low FSH levels may experience a decrease in libido. Understanding the hormonal balance and seeking appropriate medical advice can help address any potential issues.
- Hot flashes: Low FSH levels can impact estrogen levels in women, leading to symptoms commonly associated with menopause, such as hot flashes and night sweats.
It’s important to know that symptoms can vary from person to person. If you are experiencing any of the above symptoms or are concerned about your hormone health, speak with a professional you trust.
What Causes Low FSH Levels?
If you’re experiencing low levels of FSH, it may result from a rare disorder called hypopituitarism which occurs when the pituitary gland doesn't make one or more hormones or doesn't make enough hormones; this can include FSH [3]. Other potential causes of low FSH levels in women include:
- Polycystic ovarian syndrome (PCOS): PCOS is a common hormonal disorder in women of reproductive age, characterized by cysts on the ovaries, irregular menstrual cycles, and elevated androgen levels. In some cases, women with PCOS may exhibit low FSH levels
- Premature ovarian failure: Premature ovarian failure occurs when the ovaries stop functioning before the age of 40, leading to a decline in estrogen and FSH levels.
- Stress or excess exercise: Chronic stress and intense physical activity can disrupt the delicate balance of hormones in the body, including FSH.
What do Low FSH Levels Mean?
FSH is one of the gonadotrophic hormones - the other being Luteinizing Hormone (LH). Because of the crucial role it plays in pubertal development and the function of women’s ovaries and men’s testes[5], low FSH levels can have profound effects on reproductive health, impacting menstrual cycles, fertility, and overall well-being in both men and women.
A fluctuation in FSH levels may indicate an underlying condition such as hypopituitarism, PCOS, or premature ovarian failure. Or, it may be a result of certain lifestyle changes. If you are concerned about your levels, speak with a healthcare professional who will be able to help determine the underlying cause.
See also: What Are The Symptoms of High FSH Levels In Women?
If you are curious about your FSH levels, you can find out more by taking a simple blood sample - this can be done with your local doctor or from the comfort of your own home with LetsGetChecked’s range of female hormone testing options.
LetsGetChecked’s Female Hormone Test offers a comprehensive picture of your fertility status and is ideal for anyone who is curious about their hormones. It must be taken on day 3 of your menstrual cycle to ensure accurate results.
References
- You and Your Hormones. Follicle Stimulating Hormone. Online: Yourhormones.info, 2018
- You and Your Hormones. Follicle Stimulating Hormone. Online: Yourhormones.info, 2018
- Mayo Clinic, Hypopituitarism. Online: Mayoclinic.org, 2019
- Mayo Clinic, Hypopituitarism. Online: Mayoclinic.org, 2019
- Mayo Clinic, Hypopituitarism. Online: Mayoclinic.org, 2019
- Mayo Clinic, Hypopituitarism. Online: Mayoclinic.org, 2019
