Opening GPAtlas…

🌊 The Ocean Library · GP clinical topic

Miscarriage

Reviewed and updated by practising UK GPs, overseen by our Clinical Advisory Officer. Last updated 24 Jun 2026.

🧭 When to suspect

Suspect miscarriage in any woman with a confirmed pregnancy – or who could be pregnant – presenting before 24 weeks gestation with vaginal bleeding and/or lower abdominal pain or cramping.

A quieter clue is the loss of pregnancy symptoms (settling nausea or breast tenderness), which may be the only feature of a missed miscarriage.

Miscarriage is the most common complication of early pregnancy, affecting around 15% of recognised pregnancies; the true figure is higher, as many losses occur before the pregnancy is recognised.

The two non-negotiable skills in primary care are to exclude ectopic pregnancy and to assess haemodynamic stability.

• Any woman of reproductive age with a positive pregnancy test and pain or pelvic tenderness has an ectopic pregnancy until proven otherwise.

• A haemodynamically unstable woman needs emergency admission rather than a routine appointment.

Type Key features Cervical os and scan
Threatened

• Bleeding with a viable intrauterine pregnancy

• Pain mild or absent

• Os closed

• Fetal heartbeat present

Inevitable

• Bleeding and pain

• Miscarriage is in progress

• Os open

• Products not yet passed

Incomplete

• Some products passed, some retained

• Ongoing bleeding/pain

• Os often open

• Retained products on scan

Complete

• All products passed

• Bleeding and pain settling

• Os closed

• Empty uterus on scan

Missed (delayed)

• Fetus has died but is retained

• Often little/no bleeding and loss of pregnancy symptoms

• Os closed

• No heartbeat on scan

Septic Retained products with infection – fever, rigors, offensive discharge, tender uterus A surgical emergency

Source: NICE NG126


🔒 Sign up free to read the full topic

You're viewing a free preview. Create a free account to unlock the rest.

Sign up free →
Inside the full topic 🔒 History🔒 Red Flags🔒 Examination🔒 Patient Explanation🔒 Investigations🔒 Management🔒 Non-pharmacological Treatment🔒 Pharmacological Treatment🔒 Special Notes🔒 Referral Pathways🔒 Take Home Messages

Sample topics are open to everyone in the Free Sample Bundle.

Part of The Ocean Library, 450+ structured clinical topics mapped to the primary care curriculum. Companion audio in Echo · one-page summary in The Scope.

We use cookies to enhance your browsing experience, provide personalised content, and analyse our traffic. By clicking "Accept All", you consent to our use of cookies. Privacy policy