🔍 What is the LH/FSH Ratio Test?
A blood test that measures the levels of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) to evaluate ovarian function, fertility issues, and hormonal disorders. The LH/FSH ratio is particularly useful in diagnosing conditions like Polycystic Ovary Syndrome (PCOS).
🎯 Purpose of the Test
Assess ovarian function and menstrual irregularities
Diagnose Polycystic Ovary Syndrome (PCOS)
Evaluate fertility issues in both men and women
Detect pituitary gland disorders
📊 Normal Ranges (May vary by lab & menstrual cycle phase)
✅ Typical LH/FSH Ratio: ~1:1
⚠️ PCOS Indicator: >2:1 or 3:1 (Higher LH than FSH)
Hormone Normal Levels:
LH: 5 – 25 IU/L (varies by cycle phase)
FSH: 5 – 20 IU/L (varies by cycle phase)
⚠️ Conditions Associated with Abnormal LH/FSH Ratio
Polycystic Ovary Syndrome (PCOS) (High LH compared to FSH)
Primary Ovarian Insufficiency (High FSH)
Pituitary Disorders (Affecting LH/FSH secretion)
📝 Additional Testing May Include:
Testosterone & Androgen Levels (For PCOS diagnosis)
Estradiol & Progesterone (Assess ovulation & ovarian health)
Thyroid Function Tests (TSH, T3, T4)
👩‍⚕️ When Should You Get Tested?
Irregular or Absent Menstrual Cycles
Symptoms of PCOS (Acne, Weight Gain, Excess Hair Growth)
Infertility Concerns
Early or Delayed Puberty