Design: Online cross-sectional survey of OB/GYN residents from January- February 2023. Program directors and coordinators of 20 OB/GYN residency programs in California were emailed to disseminate the survey to their residents.

Setting: Online.

Patients or Participants: 70 residents began the survey; of those, 3 only answered demographic questions and were excluded. 67 answered at least one non-demographic question and were included. A resident response rate was not calculated because we were unable to determine how many programs distributed the survey.

Interventions: Survey regarding educational experiences, comfort with diagnosis and treatment, and overall confidence level with management after graduation.

Measurements and Main Results: 84% of residents felt they could recognize symptoms of endometriosis but only 48% could reliably diagnose an endometrioma on ultrasound. Residents in academic programs were statistically more likely than community-based residents to have exposure to attendings prescribing GnRH antagonists and agonists, androgens, and long-acting reversible contraception (LARC). However, there were no differences in resident practices. Only approximately a third of residents felt comfortable managing hypoestrogenic symptoms, osteoporotic risks, and add-back progestin for certain hormonal therapies. The most commonly seen surgical technique was removal of endometriomas (83%). More respondents would feel comfortable medically managing endometriosis (52%) than surgically managing the disease (26%) if they were in practice today, with only 40% of PGY3-4 residents feeling comfortable surgically managing endometriosis.

Conclusion: There is considerable room for improvement in the education of residents in the diagnosis and medical and surgical management of endometriosis. Residents indicated they want both more formal teaching and hands-on experiences to learn about endometriosis management.