The suction cup is used to support the birth when the mother is too weak or the child has a very large head. The suction cup is made of rubber or metal and is set on the head of the child. With the help of a vacuum, a light suction is created which gently pulls the baby out of the birth canal.
The suction cup can cause a slight short-term swelling or haematoma on the head of the child, but doesn’t change its shape.
Instead of the relatively gentle suction cup, an obstetric forceps can be used.