Searches for 'Is it normal to have two periods in one month' have risen exponentially over the course of lockdown. In fact, it's up 2,400% – with many wondering what the possible reason for experiencing a 'double period' could be and whether or not it's cause for concern.
While it's always best to seek medical advice from your GP or a specialist, we asked Dr Sarah Jarvis, also an advocate for leading femtech device, Livia, to explain some of the more common causes of having two bleeds in a month (in the hopes that it will be reassuring while you wait for an appointment).
Firstly, Dr Jarvis says it's important to confirm that you're definitely having two distinct periods, rather than experiencing spotting between periods (spotting is much lighter than a period and shouldn't involve enough blood to warrant using a tampon or having to frequently change sanitary pads).
"Spotting, or any type of bleeding, between your periods should always be checked out as it could indicate a sexually transmitted disease, or in very rare cases, cancer of the womb or cervix," says Dr Jarvis. "However, there are a couple of instances where you might want to hold off before calling the doctor, such as if you’ve recently started a new method of hormonal contraception, like the oral contraceptive pill, implant, patch or hormone-releasing coil, and your GP or sexual health advisor has told you to expect irregular bleeding for a while."
Is it normal to have two periods in one month?
If spotting's not the case - and you’re sure you've definitely had two defined periods - there are several possible causes, says Dr Jarvis. "Firstly, most women assume that the only 'normal' duration between periods is 28 days, when in fact, anything from about 21 to 40 days is considered normal." She adds that some women who previously had longer (28 days or more) cycles may experience two periods in a month if their cycle gets shorter.
If you're taking the combined contraceptive pill and miss a couple of doses, you may also get a withdrawal bleed which seems like an extra period. "You can also get a period-type bleed after taking the emergency contraceptive pill too," Dr Jarvis notes, adding that some forms of hormonal contraception, especially the contraceptive implant, can also lead to more frequent periods, as well as the earlier-mentioned spotting.
As for whether or not you need to urgently contact a doctor, if you’ve only recently changed the type of contraception you use, or are taking a form of contraception that can cause irregular periods (e.g. most forms of hormonal contraception, apart from the combined oral contraceptive pill), Dr Jarvis says it’s generally pretty safe to just monitor your periods for a while. However, if you're getting other symptoms too, or find yourself feeling anxious, then there's certainly no harm in booking in for a chat.
"The same [advice] applies to a 'one-off' extra period with no other symptoms," she continues. "If you're experiencing any pain, painkillers can be effective or, for an drug-free alternative, the Livia device uses targeted micro-pulses to help block pain signals and may work quicker than medication."
Age can also be a factor when looking at why you may experience two periods in a month, Dr Jarvis explains. "As you move towards the menopause you stop ovulating as regularly and your cycle can become longer, shorter or more erratic." Other possible causes include an under or overactive thyroid, losing or gaining a lot of weight quickly, or going through major illness or stress. "Having fibroids or ovarian cysts may also increase the likelihood of having more frequent periods," she says.
Can stress or diet change cause you to have two periods in one month?
Potentially, yes. "Extreme stress can play havoc with the delicate hormone balance needed for ovulation and periods to happen regularly," says Dr Jarvis. "If you’ve gone through major trauma or stress of late, or have made big changes to your lifestyle (e.g. suddenly increasing your exercise, or losing or gaining a lot of weight), you may find your period pattern changes."
As for other considerations, Dr Jarvis adds that it's important to remember that spotting can happen in pregnancy (and you should always alert your doctor if this happens, or call 111). "Miscarriage can result in bleeding which may be mistaken for an extra period too," she says. "You should always speak to a doctor if you have spotting or irregular bleeding between periods, pain or bleeding when you make love (or immediately afterwards), vaginal discharge (especially if it smells offensive), persistent or severe low tummy pain, or a significant change to your menstrual pattern, including increased cramps, dark clots or flooding."
The bottom line? It's probably hormone-related but if something doesn't feel right or it's causing you anxiety, it's always worth getting it checked out.
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