1. Common obstetric diseases; clinical experience in high-risk pregnancy management and critical care. 2. Early pregnancy diagnosis, prenatal care, complications, comorbidities, fetal abnormalities, normal/abnormal labor, delivery complications. 3. Complications: miscarriage, hyperemesis gravidarum, gestational hypertension, preterm labor, post-term pregnancy. Comorbidities: diabetes, thyroid diseases. Fetal abnormalities: structural anomalies, macrosomia, distress, placenta previa/abruption, PROM. 4. Delivery complications: postpartum hemorrhage, soft birth canal injury, puerperal infection.

Over 10 years in OB/GYN. Over 10,000 patient visits, over 100 surgeries. Worked at Third Affiliated Hospital of Sun Yat-sen University (2014-2017).