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Induction of Labour

Induction of labour

You may be admitted to the annexe in the delivery suite or to a designated ward in general prenatal for induction of labour. As your labour becomes established you will be transferred to a delivery suite room.  Induction involves starting labour artificially. Labour may be induced if there is some risk to you or your baby’s health or if you are overdue. Induction of labour can take up to 24 hours: the longest part is getting the cervix to soften and open to about 2 cm. If your labour is induced, your contractions and your baby’s heartbeat will need to be continuously monitored.

There are three methods used to induce labour. Some women might need just one method, while others might need all three. You will be given an information leaflet in the clinic once the decision is made to induce your labour and the doctor will tell you about the possible methods needed to induce your labour when you arrive in the hospital.

Prostin gel

Prostin is a hormone used to soften and shorten the cervix, sometimes referred to as ‘ripening the cervix’. Before the prostin gel is inserted into your vagina, the midwife will carry out some assessments and observations on you and your baby, including monitoring of your baby’s heartbeat for 20 minutes (CTG).

Once the prostin is inserted, you will be asked to stay in bed for one hour to help the gel to work. During this hour, continuous monitoring of the baby’s heartbeat will continue. Provided the CTG is normal, the monitoring is discontinued after the hour and you are encouraged to walk about and to eat light food if you wish. At this stage, you might have pains like period pains. However, some women may require a second or third prostin gel as part of the induction process.

Very occasionally, the prostin gel may cause your womb to contract too much and this in turn may affect the baby’s heartbeat. If this happens, you will be asked to lie on your left side and you may be given a drug to help your womb relax. Some women go into established labour following this method of induction.

Artificial rupture of the membranes (ARM)

The second method of induction is to artificially break the membranes – the bag of water surrounding the baby. The doctor will carry out a vaginal examination and break the waters. This is a painless procedure for you and your baby and is like bursting a fluid-filled balloon. Once the waters break, fluid called ‘liquor’ will drain throughout your labour. Sometimes, this method of induction is enough to start labour.


The third method of induction is by means of a syntocinon drip. This is explained in the next section - acceleration of labour.

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