In case you needed a reminder that you should be nice to your mum, let this photo be it today.
Most people know that a woman's cervix needs to dilate to 10 centimetres before she is supposed to start pushing during a vaginal birth. However, a lot of people have no real concept of just how much dilation is required.
A photo going viral on social media illustrates just how much those 10cm actually represent, a visual aid to understand what women's bodies go through during labour.
The image shows a circular wooden board with 10 circles carved out of it. Each hole is numbered from one to 10 indicating how many centimetres in diameter the hole is.
The 10th hole, which is 10cm in diameter, has a baby's head behind it.