Management of PCOS with Coexisting Adenomyosis

Initial Management Strategy

The American College of Obstetricians and Gynecologists recommends combined oral contraceptive pills (OCPs) as the optimal first-line treatment for patients with both PCOS and adenomyosis, addressing menstrual irregularity, endometrial protection, and hormonal suppression for adenomyosis symptoms 1, 2
Target 5-10% weight loss through a 500-750 kcal/day energy deficit, which improves both PCOS metabolic/reproductive abnormalities and may reduce adenomyosis-related inflammation 1, 2
Implement at least 150 minutes/week of moderate-intensity exercise, which benefits PCOS symptoms even without weight loss 1, 2
No specific diet type is superior; follow general healthy eating principles tailored to individual preferences 1

Combined oral contraceptives serve multiple critical functions, including suppressing ovarian androgen secretion and increasing sex hormone-binding globulin for PCOS, regulating menstrual cycles, and preventing endometrial hyperplasia 3, 1, 2
Provide hormonal suppression to control adenomyosis-related pain and abnormal uterine bleeding 3, 1, 2
Reduce hirsutism and acne through androgen level reduction 1, 2
Progestin-only therapy (medroxyprogesterone acetate) suppresses circulating androgen levels and pituitary gonadotropins in PCOS, and controls adenomyosis-related pain through antiproliferative and anti-inflammatory effects 3

All patients require metabolic surveillance regardless of weight, including screening for type 2 diabetes with fasting glucose followed by 2-hour glucose tolerance test, obtaining fasting lipid profile, and calculating BMI and waist-hip ratio 3, 2
Metformin (500-2000 mg daily) should be added when insulin resistance or glucose intolerance is documented, lifestyle modifications alone are insufficient for metabolic control, or patient has obesity or elevated cardiovascular risk factors 3, 2, 4

If pregnancy is desired in the future, continue lifestyle modifications and metabolic management, discontinue OCPs when ready to conceive, and use clomiphene citrate as first-line ovulation induction 1, 4
Metformin appears safe during pregnancy and may reduce miscarriage risk in PCOS 4

Do not use spironolactone as monotherapy in patients attempting to conceive; use clomiphene citrate instead 1
Do not use thiazolidinediones in pregnancy; their effects on early pregnancy are poorly documented compared to metformin 4
Do not exceed recommended clomiphene dosage and duration 4
Do not delay lifestyle intervention—it must be the foundation, not an afterthought 4
Do not assume normal weight excludes metabolic dysfunction in PCOS 4