While a small difference is quite normal for most women, it could be a sign that you have a health issue or medical condition that can be treated.
On average, periods happen every 28 days and last for about 5 days. However, it's common for the time between periods to be longer or shorter than this or to last longer than seven days.You shouldn’t worry if:
You'll probably have irregular periods if:
The length of time between your periods keeps changing
There are many reasons for irregular periods, these include:
Irregular periods could also be a sign of an underlying medical conditions such as:
Keep a note of when your periods start, then count the days between them, to see if this varies.
While irregular periods aren't always a sign of a medical problem, it's a good idea to visit your GP to rule out or identify possible health issues, especially if:
Also, tell your GP if you have heavy irregular periods, are bleeding between periods or have symptoms such as pain or discomfort.
In order to make a diagnosis, your GP may:
You may be referred to a gynaecologist if your doctor feels you need further tests or specialist treatment.
Treatment of irregular periods depends on the underlying cause of the problem. For example, you may be offered:
Getting pregnant can be difficult for some women with irregular periods, but hormone or fertility treatments can help.