Intestinal Obstruction for NEET-PG & INICET — SBO vs LBO Diagnosis

This is a high-yield topic in NEET-PG & INICET Surgery, contributing 1-2 marks per paper. Master the key concepts below, then practise PYQs on Kinase to lock in your score on exam day.

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Quick Answer

Intestinal obstruction is tested in NEET-PG & INICET Surgery — 1-2 marks per paper. SBO: vomiting (early, bilious), distension (less), absolute constipation late. LBO: distension marked, constipation early, vomiting late. Most common cause of SBO in adults: adhesions; in kids: intussusception. Most common LBO cause: malignancy.

Key Concepts to Lock In

  • 1SBO clinical: vomiting (early, bilious), colicky pain, less distension, absolute constipation late
  • 2LBO clinical: distension marked, constipation early, vomiting late (faeculent if distal)
  • 3X-ray SBO: central distended loops, valvulae conniventes, multiple air-fluid levels
  • 4X-ray LBO: peripheral distended loops, haustrations, paucity of small bowel gas
  • 5SBO most common cause adults: post-operative adhesions
  • 6SBO most common cause children: intussusception (ileocaecal)
  • 7LBO most common cause: colorectal malignancy
  • 8Treatment: NG decompression, IV fluids, electrolyte correction; surgery if strangulation/perforation

NEET-PG & INICET Relevance

NEET-PG & INICET SubjectSurgery
Expected questions1-2 marks per paper
Question typeMostly clinical vignettes; some direct recall
Repeated in last 5 yearsYes — appears in nearly every session

Related High-Yield Topics

Acute Appendicitis for NEET-PG & INICET
Surgery · 2-3 marks per paper

Pro tip: reading this page once is not enough. Pair the concepts above with 20-30 NEET-PG & INICET-style PYQs on this topic, then revisit after 7 days. Spaced practice is what locks high-yield topics into long-term recall for exam day.

Frequently Asked Questions

Is Intestinal Obstruction for NEET-PG & INICET important for NEET-PG & INICET?▼
Yes. This topic typically contributes 1-2 marks per paper in the NEET-PG & INICET paper, predominantly in the Surgery section. It is among the high-yield topics that consistently appear across recent NEET-PG & INICET sessions.
How should I prepare this topic for NEET-PG & INICET 2026?▼
Master the key concepts listed on this page, then practise NEET-PG & INICET-style PYQs on this topic. The most efficient approach: 30 minutes of focused reading followed by 20-30 PYQs to lock in retention. Repeat after 7 days for spaced revision.
Where does this topic fit in the NEET-PG & INICET syllabus?▼
This topic falls under NEET-PG & INICET Surgery. Surgery carries significant weightage in the NEET-PG & INICET paper. Combine this topic with other high-yield Surgery topics for maximum return on study time.
Are PYQs available on this topic in Kinase?▼
Yes. Kinase has thousands of subject-tagged PYQs including this specific topic. Each question comes with a detailed text explanation covering the concept and why other options are incorrect.
Surgery subject
1-2 marks per paper
Updated for NEET-PG & INICET 2026

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This topic is 1-2 marks per paper of NEET-PG & INICET June 2026. Lock it in.

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