Period or Menstrual Pain
For women, the menstrual cycle is the natural process that happens every month as the body prepares itself for pregnancy. During this time when the lining of the womb is being shed, it’s perfectly normal to experience some cramping pain in the lower abdomen. Occasionally, there may be some pain in the lower back and the top of your legs.
WHAT CAUSES MENSTRUAL OR PERIOD PAIN?
What is the menstrual cycle?
The menstrual cycle is the natural process that happens once every month as the body prepares itself for pregnancy. At the start of each cycle, the uterus begins to develop a soft lining of blood-rich tissue in preparation for an egg that will be released from the ovaries in a process called ovulation.15
If fertilised, the egg would develop into a foetus. If fertilisation does not occur, then the blood-rich lining of the womb is shed as it is no longer needed. This is referred to as a period, or menstruation.15

Why menstrual pain happens
During menstruation, it is normal to experience some cramping pain in the lower abdomen, the lower back and the top of your legs.16
The menstrual cramps occurs as the womb contracts to remove the lining that it no longer needs. Chemicals called prostaglandins are known to cause pain and are involved in helping the womb contract. 16
For some women, menstrual pain is mild, but for others, the pain can be more severe. No one really knows why, but it could be that some women have too much prostaglandins or are more sensitive to pain than others. This can make the womb contract especially hard, briefly reducing the blood supply to the womb which causes even more pain.16,17
As a rule, menstrual pain is nothing to worry about – all you have to do is learn how to manage it, perhaps with painkillers such as Panadol®18,19 or other tried-and-tested methods, including exercising and applying heat.16,20