High-Yield OBG Topics for NEET PG 2026: Important Topics & Most Asked Questions

A 28-year-old primigravida at 34 weeks suddenly complains of a severe headache and blurry vision. Her blood pressure spikes to 170/110 mmHg. A urine dipstick shows 3+ protein, her platelet count drops to 80,000/µL, and her AST is elevated at 310 U/L.

She is showing textbook signs of HELLP syndrome, which is a highly dangerous complication of pre-eclampsia. Your immediate next step is to stabilise her blood pressure and prep for delivery because both the mother and the baby are in immediate danger.

Severe pre-eclampsia and HELLP syndrome are absolute emergencies in wards and top-priority topics for NEET PG.

If this vignette made you pause, it’s definitely time to ramp up your Obstetrics & Gynaecology revision. OBG was the absolute heaviest-weighted subject in NEET PG 2025, and that trend isn't going anywhere.

The Quick Answer: Why You Cannot Skip OBG

Obstetrics & Gynaecology usually brings in about 19 to 30 questions on the NEET PG exam. That makes it the single biggest clinical subject you’ll face.

• Your highest-yield targets: Pre-eclampsia, ectopic pregnancies, antepartum haemorrhage, CTG interpretation, cervical cancer staging, and contraception.
• The Exam Pattern: You must focus heavily on clinical decision-making. In fact, nearly 49% of the OBG questions in NEET PG 2025 were purely case-based scenarios. Examiners have completely moved away from isolated one-liners, forcing you to integrate lab values and ultrasound findings instead.

In This Post:

• Why OBG Is Non-Negotiable for NEET PG 2026
• Top High-Yield Obstetrics Topics
• Top High-Yield Gynaecology Topics
• Obstetric Emergencies
• Pre-eclampsia vs Eclampsia vs HELLP
• High-Yield Points for NEET PG
• Frequently Asked Questions

Why OBG Is Non-Negotiable for NEET PG 2026

Let's be clear about one thing: you can't approach Obstetrics and Gynaecology like a standard textbook subject. It basically dominates the current NEET PG layout, meaning you will literally see more questions from this section than anything else on the paper.

Over our 10 years of experience mentoring medical aspirants, our team has picked up on something interesting. The students who easily clear the OBG section always use what we call a "labour room mindset."

Rather than passively reading, they treat each topic as a live patient crisis. Take pre-eclampsia, for example. Rote memorisation of the BP criteria won't cut it anymore. You have to imagine standing right there in the ward, forced to quickly choose between expectant management and an immediate delivery. Building that fast clinical reflex is exactly what the NBEMS panel is looking for, and they specifically write vignettes to test how you make decisions under pressure.

Download NEET PG Previous Year Question Papers PDF For Free

Top High-Yield Obstetrics Topics for NEET PG 2026

1. Pre-eclampsia, Eclampsia & HELLP Syndrome

If you look at past papers for NEET PG, INI-CET, or FMGE, you'll see this topic everywhere. Memorising the baseline criteria is an absolute must.

Diagnostic Criteria

• Look for a blood pressure reading of 140/90 mmHg or higher after the 20-week mark, paired with at least 300 mg of protein in a 24-hour urine collection.
• Things are officially classified as severe when the BP reaches 160/110. You also need to watch out for a platelet drop below 100,000/µL, doubled liver enzymes, or a patient complaining of visual disturbances and epigastric pain.

The Exam Trap

• A patient can absolutely go into HELLP syndrome even if their blood pressure isn't alarmingly high. Don't let a normal BP reading trick you into ruling it out.

Treatment & Guidelines

• To manage eclamptic seizures, Magnesium sulfate is your main tool. Make sure you know the exact Pritchard dosing sequence:
  • Start with a 4 g IV loading dose along with 5 g IM into each buttock, then maintain that with a 5 g IM dose every four hours.
• A quick clinical note based on ACOG recommendations is that if a patient develops severe features at 34 weeks or later, you should plan for delivery. Delaying it is too risky.

2. Antepartum Haemorrhage: Placenta Previa vs Abruption

Expect at least one question asking you to differentiate between these two bleeding conditions.

Clinical Presentation

• With placenta previa, the patient will present with recurrent, painless bleeding that is bright red.
• Pacents abruption is painful. The blood is dark, and the uterus will feel very tense and woody to the touch. If the exam paper includes an image of a Couvelaire uterus, you are looking at severe placental abruption.

The Imaging Trap

• Students frequently lose marks on the imaging step here. For placenta previa, transvaginal ultrasound is the actual gold standard. People often mistakenly pick transabdominal USG.
• Meanwhile, diagnosing an abruption relies heavily on your clinical exam because regular ultrasounds miss retroplacental clots nearly half the time.

3. Ectopic Pregnancy

You need to spot the clinical triad of amenorrhoea, lower abdominal pain, and vaginal bleeding immediately. The ampulla of the fallopian tube is where this most commonly occurs.

Treatment Protocol

• If the mass hasn't ruptured yet, we typically manage it medically using methotrexate.
• But you have to check the parameters first. The mass must be smaller than 3.5 cm, with zero fetal cardiac activity, and the serum β-hCG needs to be under 5,000 mIU/mL.

The Exam Trap

• If a vignette mentions a β-hCG over 1,500 mIU/mL but the TVS shows a completely empty uterus, you should assume it is an ectopic pregnancy until proven otherwise.

4. Gestational Trophoblastic Disease

Examiners frequently test your ability to separate the two main types of hydatidiform moles.

• Complete mole: Features a 46, XX karyotype with absolutely zero fetal tissue. Ultrasounds usually reveal a snowstorm pattern, and the risk of developing choriocarcinoma is quite high.
• Incomplete mole: Presents with a triploid 69, XXY karyotype. You will see fetal parts here, and the overall cancer risk is significantly lower.
• Follow-up: Regardless of which type you are dealing with, mandatory β-hCG monitoring is required after the evacuation.

5. CTG Interpretation & Fetal Surveillance

Questions on CTG have spiked recently. Keep in mind that a normal baseline fetal heart rate sits between 110 and 160 bpm.

• Variable decelerations: These are the most common during labour and point to cord compression.
• Late decelerations: These point to uteroplacental insufficiency, which is a highly dangerous finding.
• Early decelerations: Just a benign response to fetal head compression.

Also, review the Biophysical Profile. It scores five parameters: fetal breathing, movement, tone, amniotic fluid, and an NST. Each gets a score of 0 or 2. If the total score drops to 4 or below, it's time to deliver.

6. Rh Isoimmunization

We don't use amniocentesis as the first-line screening for fetal anaemia anymore. Middle cerebral artery peak systolic velocity on Doppler is the new non-invasive standard. An MCA-PSV > 1.5 MoM flags significant fetal anaemia.

Prevention Strategy
Give Anti-D immunoglobulin at 28 weeks and within 72 hours of delivery to an unsensitised Rh-negative mother. A 300 µg IM dose is enough to neutralise up to 30 mL of fetal blood.

Also Read: Instruments Used in Gynaecology & Obstetrics

Top High-Yield Gynaecology Topics for NEET PG 2026

1. Cervical Carcinoma

The FIGO 2018 staging update is a massive priority for your prep.

Staging & Treatment Updates

• The biggest shift is that Stage IB is now split into IB1 (< 2 cm), IB2 (2-4 cm), and IB3 (> 4 cm).
• Furthermore, imaging and pathological findings can now officially be used for staging, which is a huge departure from the old purely clinical staging rules.
• For treatment, Stage IA1 without lymphovascular space invasion just needs a cone biopsy or simple hysterectomy. But the moment you hit Stage IB2 or higher, you need concurrent chemoradiation with cisplatin.

We always remind our students that cervical cancer is the only gynaecological malignancy staged clinically by FIGO, but now we get to use imaging assistance. Remembering that simple fact will instantly solve at least one MCQ.

2. Abnormal Uterine Bleeding & PALM-COEIN

The FIGO PALM-COEIN classification is tested practically every year. It splits AUB into two main categories:

• Structural: Polyp, Adenomyosis, Leiomyoma, Malignancy
• Non-structural: Coagulopathy, Ovulatory dysfunction, Endometrial, Iatrogenic, Not yet classified.

Keep in mind that ovulatory dysfunction is the single most common cause of AUB in reproductive-aged women.

3. Contraception Guidelines

This is an exam staple that you cannot afford to skip.

• Cu-T 380A lasts for 10 years and is the most reliable emergency contraceptive if placed within 5 days.
• Levonorgestrel 1.5 mg is the standard emergency pill, working best when taken within 72 hours.
• Make sure you memorise the WHO MEC Category 4 contraindications for combined oral contraceptive pills: history of DVT/PE, breast cancer, migraine with an aura, and uncontrolled hypertension.

4. Infertility & PCOS

To accurately diagnose PCOS, you need to use the Rotterdam criteria. You need any two of the following three markers: oligo-anovulation, clinical or biochemical hyperandrogenism, and polycystic ovaries on an ultrasound.

Crucial Exam Update
Letrozole has officially replaced clomiphene as the first-line drug for ovulation induction. Also, while an LH: FSH ratio > 2:1 strongly supports the diagnosis, it is not officially part of the Rotterdam criteria. Examiners love using that specific ratio as a distractor option.

5. Postpartum Haemorrhage

PPH means losing > 500 mL of blood after a vaginal delivery, or > 1,000 mL after a C-section. Uterine atony causes roughly 70-80% of all these cases.

Management Strategy
Always fall back on the "4 T's" framework: 

• Tone
• Trauma
• Tissue
• Thrombin.

For medical management, you must start with an oxytocin infusion. If that fails, move down the line to ergometrine, carboprost, or rectal misoprostol.

Also Read: OBG Image-based Practice For NEET PG 2026

Obstetric Emergencies

If you can easily tell these three apart, you're guaranteed to pick up easy marks on exam day.

Pre-eclampsia vs Eclampsia vs HELLP

HIGH-YIELD POINTS FOR NEET PG

• OBG is the heaviest clinical subject. Expect 19-30 questions heavily focused on case vignettes.
• The MgSO₄ loading dose for eclampsia is 4 g IV plus 5 g IM in each buttock. Maintenance is 5 g IM every 4 hours.
• MCA-PSV > 1.5 MoM on a Doppler has officially replaced amniocentesis for Rh isoimmunization screening.
• β-hCG > 1,500 mIU/mL plus an empty TVS equals an ectopic pregnancy. Methotrexate works if the mass is < 3.5 cm, lacks cardiac activity, and hCG is < 5,000.
• Know the FIGO 2018 IB breakdown: IB1 < 2cm, IB2 2-4cm, IB3 > 4cm.
• Remember the "4 T's" for PPH. Oxytocin is the first line. Never give carboprost to an asthma patient.
• Letrozole is the new first-line ovulation inducer for PCOS, beating out clomiphene. Remember that the LH: FSH ratio > 2:1 is not part of the Rotterdam diagnostic criteria.
• Variable decelerations equal cord compression. Late decelerations equal uteroplacental insufficiency.

Also Read: Last 5 Years PYQs in Gynaecology & Obstetrics for NEET PG

Frequently Asked Questions About OBG for NEET PG

1. Does OBG carry a lot of weight in the exam?
Absolutely. You can expect anywhere from 19 to 30 questions on your paper, which usually makes it the heaviest clinical subject you will face. Just be prepared for mostly case-based scenarios that require you to read lab reports or interpret imaging.

2. Where is the exact line between pre-eclampsia and eclampsia?
Pre-eclampsia involves new-onset high blood pressure and proteinuria developing after the 20-week mark. If that same patient ends up having a generalised tonic-clonic seizure, you are now dealing with eclampsia. For both situations, Magnesium sulfate will be your primary medication.

3. Which medication is currently first-line for PCOS ovulation induction?
We use Letrozole now. It is an aromatase inhibitor that actually results in better live birth rates compared to clomiphene citrate, which was previously the old standard.

4. What is the right way to diagnose placenta previa?
Transvaginal ultrasound is the correct answer here. It is much more accurate than a transabdominal scan. Question setters constantly try to trick students into picking transabdominal, so don't fall for it.

5. What is the protocol for Anti-D immunoglobulin?
You need to administer a 300 µg IM dose to an unsensitised Rh-negative mother at two specific times. Give the first one at 28 weeks, and the second within 72 hours after she delivers. That specific amount is strong enough to neutralise up to 30 mL of fetal blood.

6. What do OBG questions usually look like?
They are almost always clinical vignettes. The paper will give you a short background story about a patient, throw in some vitals and lab numbers, and maybe attach an ultrasound or CTG image. Then they will ask you what to do next. Rote memorisation won't help much here; you need to know the actual clinical protocols.

Final Advice for Your Prep

When you are sitting in the exam hall looking at an OBG question, remember that they rarely just want the name of the disease. They want to know your immediate next action.

Through our 10 years of guiding medical students, we've seen a very clear pattern. The people who score the highest don't just stare at textbook tables. They study OBG as if they are managing real, fast-paced emergencies on the ward. If you can train yourself to make quick clinical decisions, getting a top score becomes much easier.