Stages of Labour
Cervix dilatation;
Normal dilatation of cervix; 8-10 cm
Pain;
Within 10 minutes 4 pain occurs.
Mild pain; 20sec
Moderate pain; 20-40sec
Severe pain; 40-60sec
Contraction;
Mild; 20 seconds
Moderate; 20-40 seconds
Severe; 40-60 seconds
Total Duration;
Primigrivida; 12-18 hours
Multi gravida; 6-8 hours
There are four stages of labour;
1. 1st stage
2. 2nd stage
3. 3rd stage
4. 4th stage
1. First stage
Stars from onset of true labor pain and full dilatation of cervix.
2. Second stage
Starts from full dilatation of cervix and ends with delivery (expulsion of fetus from birth canal)
3. Third stage
Begins after expulsion of fetus and ends with expulsion of placenta and membrane.
4. Fourth stage
1. First stage
Stars from onset of true labor pain and full dilatation of cervix. (8-10cm)
Time period;
In primigrivida; 10-12 hours
In multigravidae; 6-8 hours
Events in first stage labour
1. Latent phase
Dilatation of cervix; 0-3cm
Duration in primi;8hrs
Duration in multi; 4hrs
Cervix dilatation rate; 0.35cm/hr
2. Active phase
Latent phase over when cervix 3cm dilated and active phase start.
Dilatation of cervix; 4-7cm
In primigrivida;
Duration in primi; 4-8 hrs
Cervix dilatation rate;1cm/ hr
In multigravidae;
Cervix dilatation rate;1.5 cm /hr
3. Transitional phase
Dilatation of cervix; 7- 10cm
2. Second stage
Starts from full dilatation of cervix and ends with delivery (expulsion of fetus from birth canal).
In primigrivida; 1-2hrs
In multigravidae; 30 minutes
Events in 2nd stage
1. Propulsive phase
Start from full dilation of cervix upto descent of presenting part to pelvic floor.
2. Expulsive phase
Maternal bearing down efforts and ends with delivery of baby.
3. Third stage
Begins after expulsion of fetus and ends with expulsion of placenta and membrane.
Time period;
In primigrivida; 22-30 minutes
In multigravidae; 22-30 minutes
Average; 15 minutes
4. Fourth stage
Observational stage;
Observe general condition of patient and baby and behaviour of uterus.
At least one hours after birth (4 hour mother and baby).
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