Defined as <2cm dilation in 4 hours in nulliparous women, and <2cm dilation in 4 hours or slowing in progress in multiparous women

Aetiology

• Most common reason is deflexion of the fetal head

Clinical features

Signs of obstruction

• Moulding
• Caput
• Anuria
• Haematuria
• Vulval oedema

Investigations

• Parogram: a graphic representation of the progress of labour
  • Commence as soon as in established labour

Management

• Operative delivery/ Caesarean section

Complications of obstructed labour

• Sepsis
• Uterine rupture
• Obstructed AKI
• Postpartum haemorrhage
• Fistula formation