Skip to main content

We use cookies on this website. By using this site, you agree that we may store and access cookies on your device.

Miscarriage - Causes

There is usually nothing that can be done to stop a miscarriage from happening. There are some ways you can reduce your risk of miscarriage.

Miscarriage is very common. In most cases it's not possible to explain why a miscarriage happens. This is especially true if the miscarriage occurs in the first 12 weeks of a pregnancy.

Most miscarriages are not caused by anything the mother has done.


Experts say most miscarriages happen because of an issue with the baby’s chromosomes. Chromosomes are part of a person's genes. They guide a baby’s development. Miscarriage can happen if a baby has too many chromosomes or too few.

Pregnancy loss after 24 weeks is known as stillbirth.

Find out what to do if you have a stillbirth.

Page last reviewed: 20/11/2018
Next review due: 20/11/2021