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SGA, FGR & reduced movements
Definitions and when to deliver.
Source: RCOG GTG 31 (2024) · GTG 57 (2026) · SBLv3Definitions
| SGA | EFW or AC <10th centile. |
|---|---|
| FGR | <3rd centile, or <10th with abnormal Dopplers. |
| Early vs late | Before / after 32+0 weeks. |
Timing
| SGA, normal Doppler | Birth by 39+0–39+6. |
|---|---|
| Late FGR / <3rd | Birth by 37+0–37+6. |
Reduced movements
| <24 wk | Doppler fetal heart. |
|---|---|
| ≥26 wk | Computerised CTG. |
| >28 wk | Scan if RFM persists or risk factors. |
Do not induce for reduced movements alone before 39 weeks without evidence of compromise.
A summary for trained clinicians. Always check the full guideline, the patient in front of you and your hospital's protocol. Spotted an error? Tell us.