πΆ Fetal movements are a reassuring sign of fetal well-being. Most women notice them from around 18β20 weeks, with movements becoming stronger and more regular as pregnancy progresses. π¨ A noticeable reduction or change in fetal movements may indicate potential fetal distress or complications, requiring prompt evaluation.
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What is Considered Normal?
- π€° Most women first feel movements between 18β24 weeks (earlier in multiparous women).
- π By the third trimester (after 28 weeks), movements become more regular and easier to track.
- π Movements increase in frequency and strength until ~32 weeks, then plateau but should not reduce.
- π¦Ά Normal movements include kicks, rolls, swishes, and turns.
β οΈ Causes of Reduced / Changed Movements
- π€ Fetal sleep cycles: Quiet phases lasting 20β40 minutes (up to 90 minutes).
- π©Έ Placental insufficiency: Reduced oxygen/nutrient delivery to the fetus.
- π§ Oligohydramnios: Low amniotic fluid restricting movement.
- β Fetal hypoxia/distress: Decreased activity due to impaired oxygenation.
- π© Maternal factors: Stress, dehydration, smoking, sedative drugs.
- 𧬠Fetal abnormalities: Congenital or chromosomal disorders may reduce activity.
π Assessment of Reduced Fetal Movements
- π History: Ask about frequency, pattern, and quality of movements + associated symptoms (bleeding, pain).
- π©Ί Examination: Assess maternal well-being, uterine size, and abdominal tenderness.
- π Fetal heart rate monitoring: Doppler or CTG to detect abnormalities.
- π₯οΈ Ultrasound: Assess growth, amniotic fluid, and placental function (consider Doppler studies).
π οΈ Management
- π€± Reassurance: If movements are normal after assessment, reassure and advise ongoing monitoring.
- π§ͺ Further investigations: If concerns persist β growth scans, Doppler, serial CTGs.
- πΆ Early delivery: Indicated if evidence of fetal distress or severe growth restriction.
- π Maternal education: Teach "count to 10" method (expect 10 movements in 2 hours after 28 weeks). Emphasise seeking help if concerned.
π¨ Red Flags (Require Urgent Action)
- β¬οΈ Sudden or marked reduction in movements after 28 weeks.
- π No movements felt for >12 hours in the third trimester.
- β‘ Movements that are weaker or markedly different in pattern.
- π© Associated warning signs: vaginal bleeding, abdominal pain, fluid leakage.
π©ββοΈ Key Considerations for Clinicians
- π Always take maternal concerns seriouslyβdelayed action can lead to stillbirth.
- π Follow NICE & RCOG guidelines on reduced fetal movements.
- π€ Involve multidisciplinary teams (obstetricians, midwives, fetal medicine if needed).
- π Document history, examination, investigations, and advice thoroughly.