Ovulation stimulation is a treatment aimed at activating ovarian function to produce one or more mature eggs. It is commonly used in women with ovulatory disorders and in assisted reproductive technologies (ART) such as intrauterine insemination (IUI) and in vitro fertilization (IVF).

Goal of Stimulation
The primary goal is to increase the level of follicle-stimulating hormone (FSH) to values that activate follicular growth, leading to the release of a mature egg (ovulation).

Causes of Ovulatory Disorders
Anovulation (lack of ovulation) and oligoovulation (irregular ovulation) are among the most common causes of female infertility. Causes include:

• Hormonal imbalances (e.g., polycystic ovary syndrome – PCOS)
• Central nervous system disorders
• Endocrine disorders (e.g., hyperprolactinemia, thyroid dysfunction)
• Excessive or insufficient body weight
• Chronic stress
• Age-related factors (decreased ovarian reserve after 35 years)

Methods of Ovulation Stimulation
1. Clomiphene Citrate (Clomid) Therapy
Administered orally from day 3 to 7 of the menstrual cycle. Ultrasound monitoring begins on day 8 to assess follicular response. If a mature follicle develops, an injection of human chorionic gonadotropin (hCG) is given to trigger ovulation.

• Clomiphene is the first-line therapy. If pregnancy does not occur after 3–6 cycles, other options are considered.

2. Injectable Gonadotropins (e.g., Menopur, Gonal-F)
Used when ovaries do not respond to clomiphene or in preparation for ART. These are more effective but require intensive monitoring to avoid ovarian hyperstimulation syndrome and multiple pregnancies.

3. Letrozole (Femara)
An aromatase inhibitor used in PCOS patients. It has fewer side effects and a lower risk of multiple pregnancies compared to clomiphene. Studies show higher pregnancy rates with letrozole.

• Impact of Body Weight and Lifestyle
• Body mass index (BMI) significantly affects ovulation response. Weight loss of 5–10% can restore ovulation in overweight women. Lifestyle changes such as:
• Balanced diet
• Regular physical activity
• Stress reduction
• Adequate sleep
• are crucial for treatment success.

When Is Ovulation Stimulation Indicated?

• Confirmed anovulation or oligoovulation
• PCOS
• Unexplained infertility
• ART preparation
• Ineffectiveness of previous natural conception attempts

Conclusion
Ovulation stimulation is an effective and relatively safe method for treating female infertility. Success depends on individual approach, proper medication selection, and thorough monitoring.

Modern reproductive medicine offers a wide range of options for achieving a long-awaited pregnancy.