Treatment Options for Polycystic Ovary Syndrome (PCOS)
Lifestyle management is the first-line treatment for PCOS, with multicomponent interventions including diet, exercise, and behavioral strategies being most effective for improving symptoms and reducing long-term health risks. 1
First-Line Treatment: Lifestyle Modifications
Dietary Approaches
- No specific diet has proven superior; focus should be on creating an energy deficit of 30% or 500-750 kcal/day (1,200-1,500 kcal/day) for those with excess weight 2, 3
- Dietary interventions that may be beneficial include low glycemic index foods, high-fiber diets, and anti-inflammatory diets which improve insulin sensitivity and hormonal balance 4
- Set achievable weight loss goals of 5-10% in those with excess weight, which can yield significant clinical improvements in PCOS symptoms 3
Physical Activity Recommendations
- Recommend at least 150 minutes/week of moderate-intensity physical activity or 75 minutes/week of vigorous-intensity activity for prevention of weight gain 2, 3
- For weight loss and greater health benefits, aim for 250 minutes/week of moderate-intensity activities 3
- Include muscle-strengthening activities on 2 non-consecutive days/week 2
Behavioral Strategies
- Implement SMART (specific, measurable, achievable, realistic, timely) goal setting and self-monitoring 2, 3
- Address psychological factors such as anxiety, depression, and body image concerns, which are common in PCOS 2
- Regular monitoring of weight and waist circumference is essential during weight loss and maintenance 3
Pharmacological Management
For Menstrual Irregularity and Anovulation
- Hormonal contraceptives are first-line therapy for menstrual cycle regulation and prevention of endometrial hyperplasia 5, 6
- For women desiring pregnancy, clomiphene citrate is indicated for treatment of ovulatory dysfunction 7, 6
- Should be started on or about the 5th day of the cycle once ovulation has been established 7
- Not recommended beyond a total of about six cycles (including three ovulatory cycles) 7
- Caution: Ovarian hyperstimulation syndrome (OHSS) may occur, with symptoms including abdominal pain, distention, nausea, vomiting, and weight gain 7
For Metabolic Manifestations
- Metformin is the first-line medication for metabolic manifestations such as hyperglycemia and insulin resistance 6
- Metformin in addition to lifestyle modification can improve menstrual cyclicity and hyperandrogenism, particularly in patients with PCOS and type 2 diabetes 2
For Dermatologic Manifestations
- Estrogen-containing hormonal contraceptives and antiandrogens are first-line therapy for hirsutism, acne, and male-pattern hair loss 5, 6
- More permanent hair reduction can be achieved with electrolysis and laser therapy 5
Multidisciplinary Approach
- A team including dietitian, health psychologist, gynecologist, and endocrinologist has shown enhanced outcomes in PCOS management 2
- Health professional interactions should be respectful, patient-centered, and considerate of individual preferences and cultural differences 2
Important Considerations and Pitfalls
- Avoid focusing solely on weight loss without addressing psychological aspects of PCOS 2
- Be aware that ethnic groups with PCOS who are at high cardiometabolic risk require greater consideration for lifestyle intervention 2, 3
- Central obesity increases over time in PCOS, with a progressive increase in waist-to-hip ratio between ages 20-45 years, making early intervention crucial 3
- Patients with clomiphene therapy should be monitored for visual symptoms (blurring, scotomata), which warrant immediate discontinuation and ophthalmological evaluation 7
- Before initiating clomiphene, ensure patient is not pregnant, does not have ovarian cysts (except in PCOS), and has normal liver function 7