How long can you wear a menstrual cup or disc for?

9 min read
How long can you wear a menstrual cup or disc for?

Many menstrual cups and discs can be worn for up to 12 hours, but that does not mean you need to wait 12 hours before emptying them. Your flow, the product's capacity, comfort and the manufacturer's instructions may mean you need to empty or remove it sooner.

For menstrual cups sold in Australia, the supplied instructions must state a maximum duration of use that does not exceed 12 hours. Menstrual disc wear times are product-specific, so check the instructions for the disc you use.

At a glance

  • Menstrual cups: Australian requirements allow a stated maximum wear time of no more than 12 hours.
  • Menstrual discs: Many are designed for up to 12 hours, but check your particular product.
  • Heavy flow: You may need to empty your cup or disc after only a few hours.
  • Overnight: You can use many cups and discs while sleeping if you remain within the product's wear time and capacity.
  • TSS: Toxic shock syndrome is rare but serious. Know the symptoms and seek urgent medical care if they occur.

How long can you wear a menstrual cup?

For menstrual cups supplied in Australia, the product information must include a limit on how long the cup can be worn and that maximum cannot exceed 12 hours.

The important word is maximum. You may need to empty it sooner if:

  • your flow fills the cup before the maximum wear time
  • it starts leaking because it has reached capacity
  • the cup feels uncomfortable
  • your manufacturer's instructions specify a shorter wear time

On lighter-flow days you may be able to go longer between emptying, while on heavier days you might need to empty the same cup much more frequently.

How long can you wear a menstrual disc?

Many reusable and disposable menstrual discs are designed for up to 12 hours of use, but there is no reason to assume every disc has the same instructions.

Check the information supplied with your particular product for its recommended wear time, cleaning instructions and whether it is intended to be reused or disposed of after removal.

A disc sits differently from a menstrual cup, higher in the vaginal canal with the back of the rim in the vaginal fornix and the front tucked behind the pubic bone. Cup-specific instructions should not simply be applied to a disc because both products collect menstrual fluid internally.

Can you sleep with a menstrual cup or disc?

Yes, many cups and discs can be used overnight if their instructions allow it and you will stay within the stated wear time.

If you insert your product before bed, think about when you will need to remove or empty it the following morning. If you have a heavier flow, capacity may mean you need to empty it sooner than the maximum wear time anyway.

If you're still learning how quickly your product fills, using an external backup such as a reusable cloth pad can give you a little extra peace of mind overnight.

How does your flow affect how often you need to empty it?

Wear time and capacity are two different things. A product may be suitable for up to 12 hours of wear but reach capacity much earlier.

For example, someone with a heavier flow may fill a cup after four hours, while the same cup might last much longer later in their period.

Capacity is useful when comparing products, but bigger is not always better. For menstrual cups, fit is better considered in this order:

  1. cervix height and cup length
  2. diameter and shape
  3. firmness
  4. capacity
  5. removal design

For discs, diameter and fit, rim firmness, shape and removal design all matter alongside capacity.

If you regularly fill a suitable product very quickly, your periods have become noticeably heavier or you're concerned about the amount you're bleeding, speak with a healthcare professional.

What if you forget to remove your cup or disc?

It happens. If you realise you have worn your product longer than its stated maximum, remove it as soo as you remember.

If it is reusable, clean it according to its normal care instructions before using it again.

You don't need to assume that going over the wear time once means something is wrong but pay attention to how you feel when you return to the recommended routine.

We recommend setting a phone alarm if you find it difficult to remember. This is especially helpful if you are new to cups or discs or your product is so comfortable that you don't notice it's there.

What about toxic shock syndrome?

Toxic shock syndrome, or TSS, is a rare but serious illness that has been reported in association with menstrual cup use as well as tampon use.

Australian menstrual cup information must include a warning about TSS and instructions about what to do if symptoms occur.

Possible symptoms can include:

  • sudden fever
  • vomiting or diarrhoea
  • dizziness or fainting
  • a widespread rash
  • confusion
  • severe muscle aches or suddenly feeling very unwell

If you develop symptoms that could indicate TSS while using a menstrual product, remove the product and seek urgent medical care.

For more information, read our guide to toxic shock syndrome.

Managing your cup or disc throughout the day

You don't need to maximise the number of hours between changes. A routine that works with your own flow is usually much easier.

  • Know roughly when you inserted it. A reminder on your phone can help if needed.
  • Learn your heavier-flow times. After a few periods, you'll usually have a better idea of when your product is likely to reach capacity.
  • Wash your hands before insertion and removal.
  • Clean reusable products according to their instructions.
  • Empty sooner if you need to. There is no benefit in waiting until the maximum wear time if the product is already full or uncomfortable.
  • Carry a backup when useful. A reusable cloth pad can be handy for travel, work or heavier-flow days.

If you need to empty your cup or disc while you're away from home, read our guide to using a menstrual cup or disc in a public bathroom.

What if your cup or disc keeps leaking before the maximum wear time?

First check whether the product is actually full.

If it is reaching capacity, you may simply need to empty it more frequently on heavier-flow days or compare products with a capacity that better suits your flow.

If it is leaking while still mostly empty, wear time probably isn't the problem. It's more likely to be the fit, positioning or insertion technique.

For cups, try the Menstrual Cup Troubleshooter or compare products using our Menstrual Cup Comparison Chart.

For discs, use the Menstrual Disc Troubleshooter or Menstrual Disc Comparison Chart.

Frequently asked questions

Can I wear a menstrual cup for 12 hours every time?

Not necessarily. Twelve hours is the maximum wear time, not a target for every use. Your cup may need to be emptied earlier because of your flow, capacity, comfort or the instructions supplied with the product.

Can I wear a menstrual cup for longer than 12 hours if my flow is light?

No. A light flow does not change the stated maximum wear time for your product. Follow the instructions supplied with your cup and remove it within that limit even if it is nowhere near full.

Can I wear a menstrual disc for 12 hours?

Many menstrual discs state a wear time of up to 12 hours, but check your particular product rather than assuming the same limit applies to every disc. You may also need to empty or remove it sooner if your flow reaches the disc's capacity.

How often should I empty my cup on a heavy period?

There is no set empty time because flow and cup capacity vary. Empty your cup before it reaches capacity, even if that means doing so several hours before the maximum wear time. Tracking how quickly it fills on your heaviest days can help you plan future changes.

Is it safe to sleep with a menstrual cup or disc?

Many people use cups and discs overnight. Check that your product is suitable for the length of time you plan to sleep, stay within its stated wear limit and take your own flow into account. If your product tends to fill overnight, empty it immediately before bed or use a suitable backup.

Does wearing a cup for longer increase the risk of infection?

Current research has not found an increased infection risk among menstrual cup users across the infections studied, although the evidence base still has limitations. That does not mean recommended wear times and hygiene instructions can be ignored. Use your product as directed, wash your hands before handling it and clean reusable products according to their instructions.

The bottom line

Many menstrual cups and discs can be worn for up to 12 hours, but your actual emptying schedule may be shorter.

Think of the stated wear time as the outer limit. Empty your cup or disc when your flow requires it and stay within the instructions for your particular product.

Choose your next step

Want to compare cup dimensions and capacity?
Use the Menstrual Cup Comparison Chart.

Comparing menstrual discs?
Use the Menstrual Disc Comparison Chart.

Not sure which type of product may suit you?
Visit the Menstrual Products Comparison Hub or take the Find Your Best Fit Quiz.

Related reading

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