Bimanual Examination

Also written as pelvic bimanual exam.

The bimanual examination assesses the size, shape, consistency and mobility of the uterus and adnexa using two hands. It helps detect masses, tenderness, and organ displacement, guiding further work‑up.

Overview

The clinician inserts one hand into the vagina while the other palpates the abdomen. Together they feel the uterus, ovaries, fallopian tubes and surrounding structures.

• Provides tactile information not seen on imaging
• Essential for routine gynae exams and infertility work‑up

Key concepts

Understanding pelvic anatomy and the relationship of organs is crucial for interpreting findings.

• Uterus: anteverted, midline, firm, mobile
• Ovaries: 2‑3 cm, smooth, mobile, not palpable in most non‑pregnant women
• Adnexal tenderness suggests infection or torsion

Clinical relevance

Findings direct further investigations and urgent management.

• Transvaginal ultrasound: What is the size and nature of a pelvic mass? Confirms cystic vs solid, guides surgery
• Serum β‑hCG: Is pregnancy present? Positive result mandates urgent evaluation for ectopic
• CBC with differential: Is there infection? Elevated WBC supports tubo‑ovarian abscess

• Enlarged, fixed uterus → fibroids, adenomyosis, malignancy
• Adnexal mass with pain → tubo‑ovarian abscess, ectopic pregnancy, ovarian cyst

Exam pearls

Technique and patient comfort affect accuracy.

• Warm gloved hands, adequate lubrication, explain each step
• Use gentle upward pressure on the abdomen while the vaginal hand lifts the uterus
• Compare both sides for symmetry

Common mistakes

Errors often stem from poor technique or misinterpretation.

• Rushing the exam → missed small masses
• Excessive force → patient pain, guarding, false tenderness
• Assuming a non‑palpable ovary is normal in pregnancy without imaging

Questions an examiner may ask

• Describe the steps of a bimanual examination and how you ensure patient comfort.
• Interpret a finding of a firm, fixed uterus on bimanual exam.
• List three conditions that can present with adnexal tenderness and how you would differentiate them.

When to seek help

• Severe pelvic pain with hemodynamic instability (possible ruptured ectopic)
• Fever >38 °C with adnexal tenderness (tubo‑ovarian abscess)
• Rapidly enlarging pelvic mass causing urinary obstruction

Quick questions

Why is the bimanual exam still needed if ultrasound is available?

It provides immediate tactile clues, can be done bedside, and may detect masses missed on early imaging.

Can the exam be performed in a pregnant woman?

Yes, but use lighter pressure; the uterus is enlarged and more easily felt.

What if the patient refuses a vaginal exam?

Explain its importance, obtain consent, and consider alternative imaging if refusal persists.