A single-center, randomized, controlled study of the combination of tonifying the kidneys, relieving dampness and resolving blood stasis formula with weight loss in the treatment of obese polycystic ovary syndrome with insulin resistance

INTERVENTION: Chinese medicine group:Tonifying the kidney, relieving dampness and resolving blood stasis formula combined with medical weight loss;Control group:Metformin hydrochloride tablets; CONDITION: polycystic ovarian syndrome PRIMARY OUTCOME: Ovulation rates;weight; SECONDARY OUTCOME: FSH/LH/E2/PRL/T;Waist/hip circumference;fasting insulin;fasting blood sugar; INCLUSION CRITERIA: 1. conform to Chinese or Western diagnosis of polycystic ovary syndrome with insulin resistance. 2. Women aged 20‐40 years with no pregnancy plan in the future 6 months. 3. Body mass inde X(BMI) = weight/height^2 (kg/m^2) >= 24. 4. Voluntary participation and signed informed consent. 5. have the ability to use a smartphone to cooperate with medical weight loss online guidance and follow‐up. 6. If using hormonal medication, the medication should be stopped for more than 3 months.