High-Yield Obstetrics Topics for UPSC CMS 2025 – Based on 24 Years of PYQs

"Introduction

If you’re preparing for UPSC CMS 2025, you already know how vital Obstetrics is for your final score. With 20–25% of questions coming directly from this subject, focusing on what matters most can make or break your rank. This list has been carefully curated by the UPSC CMS Premium Package Team at M3 Academy, based on a deep analysis of 24 years of previous year questions (PYQs). It’s your go-to resource for high-yield revision, mock test focus, and last-minute preparation!

.High-Yield Obstetrics Topics for UPSC CMS 2025

1. Anatomy & Physiology

• Female reproductive organs & their male homologues
• Uterine supports, fetal circulation, amniotic fluid
• Placenta development & hormonal changes in pregnancy
  Key Focus: Placental hormones, CVS changes, corpus luteum
  🔍📈

2. Diagnosis of Pregnancy

• Classic signs (Goodell, Hegar, Chadwick)
• Fundal height, quickening, ultrasound findings by GA
  Key Focus: Gestational age estimation, false positive tests
  📅🩺

3. Fetal Skull & Pelvis

• Skull diameters, attitudes & presentations
• Caput succedaneum vs cephalohematoma
• Pelvic types & obstetric diameters
  🧠⚖️

4. Antenatal Care

• Dating scans, immunization (TT), gravida-parity
• Nutrition, iron needs, fetal surveillance (BPP, Doppler)
  Key Focus: CVS, L/S ratio, triple test, amniocentesis
  🍼🧬

5. Normal Labor

• Stages of labor, partograph, mechanisms
• Third stage management & newborn care
  Key Focus: WHO intrapartum guidelines
  ⏳👶

6. Puerperium

• Lochia, involution, postpartum exercises
• Colostrum vs mature milk, breastfeeding benefits
  Key Focus: KMC, mastitis, cracked nipple care
  💪🤱

7. Early Pregnancy Complications

• All types of abortions, septic abortion care
• Cervical incompetence, ectopic pregnancy (Rx)
  Key Focus: Cerclage, MTP laws
  🚨🧪

8. Gestational Trophoblastic Disease

• Complete vs partial mole
• Beta-hCG patterns, GTN treatment
  Key Focus: Ultrasound markers, follow-up
  🧫📉

9. Multiple Pregnancy & Amniotic Fluid Disorders

• Types of twins, complications
• Polyhydramnios, oligohydramnios, SUA, placenta previa
  Key Focus: Cord abnormalities
  👶👶🧵

10. Hypertensive Disorders

• PIH, preeclampsia, HELLP, eclampsia
• MgSO₄ protocol, aspirin use
  Key Focus: Indications for delivery
  💊⚠️

11. Antepartum Hemorrhage (APH)

• Placenta previa vs abruption
• Vasa previa, Couvelaire uterus
  Key Focus: Grade-wise management
  🩸🚑

12. Anemia in Pregnancy

• IDA, megaloblastic anemia, labor complications
  Key Focus: Iron therapy, blood transfusion
  💉📋

13. Medical & Surgical Disorders

• Cardiac conditions (NYHA), CA cervix in pregnancy
• PROM, preterm labor, IUFD
  Key Focus: Retroverted uterus, tocolytics
  ❤️🛌

14. Rh Isoimmunization

• Causes, anti-D timing, hydrops fetalis
  Key Focus: Sensitized pregnancy monitoring
  🧬🩸

15. Obstetric Procedures

• Breech, face, brow, CS indications
• VBAC, shoulder dystocia, forceps/vacuum
  Key Focus: Perineal tear grades & repair
  ⚕️🩹

16. PPH & 3rd Stage Issues

• Primary/secondary PPH, retained placenta
• Uterine rupture, inversion, genital trauma
  Key Focus: Active management of 3rd stage
  🚨🩸

17. Puerperal Infections

• Puerperal sepsis, mastitis, UTI
• Chorioamnionitis, subinvolution
  🦠🌡️

18. Neonatology Essentials

• Breastfeeding safety, LBW/IUGR
• RDS, TTN, NTDs, hemolysis
  🧒🫁

19. Obstetric Pharmacology

• Oxytocin, prostaglandins, antihypertensives
• Epidural/spinal S/E, labor induction meds
  💊📖

20. Miscellaneous & Current Concepts

• ART pregnancies, imaging safety (MRI, USG)
• Population dynamics, contraception
  Key Focus: Emergency contraception, MTP laws
  🧠📊