1. What is FSH/LH Ratio?

The FSH/LH ratio is a calculation used in reproductive endocrinology to assess the relationship between follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels. This ratio can provide insights into various reproductive health conditions and hormonal balance.

2. How Does the Calculator Work?

The calculator uses the simple ratio formula:

Where:

• \( FSH \) — Follicle-stimulating hormone level (IU/L)
• \( LH \) — Luteinizing hormone level (IU/L)

Explanation: The ratio is calculated by dividing the FSH value by the LH value, providing a simple numerical representation of their relationship.

3. Importance of FSH/LH Ratio Calculation

Details: The FSH/LH ratio is particularly important in evaluating polycystic ovary syndrome (PCOS), ovarian reserve assessment, and various other reproductive disorders. Abnormal ratios may indicate specific endocrine imbalances.

4. Using the Calculator

Tips: Enter both FSH and LH values in IU/L. Both values must be valid (greater than 0). The calculator will compute the ratio of FSH to LH.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal FSH/LH ratio?
A: In premenopausal women, a normal ratio is typically around 1:1. Ratios greater than 2:1 or 3:1 may suggest PCOS in some cases.

Q2: When should FSH and LH levels be measured?
A: For most accurate results, these hormones should be measured during the early follicular phase (days 2-5) of the menstrual cycle.

Q3: Can this ratio be used for men?
A: While FSH and LH are important in male reproductive health, the FSH/LH ratio is primarily used and studied in female reproductive endocrinology.

Q4: What factors can affect FSH and LH levels?
A: Age, menstrual cycle phase, pregnancy, menopause, certain medications, and various medical conditions can all affect FSH and LH levels.

Q5: Should this ratio be used alone for diagnosis?
A: No, the FSH/LH ratio should be interpreted in the context of other clinical findings, symptoms, and additional diagnostic tests.