Many reusable menstrual discs are designed for overnight wear, commonly up to 12 hours. Your emptying schedule should be based on your flow and the manufacturer's instructions.

Many menstrual cups can be worn overnight for up to the manufacturer's stated maximum, often between eight and 12 hours.

Yes. Both products collect menstrual fluid internally and can generally be worn while swimming when fitted correctly.

Menstrual cups form a seal against the vaginal walls. The seal should be released before removal.

Menstrual discs do not rely on a cup-style suction seal. They stay in position with the rim tucked behind the pubic bone.

People who menstruate can potentially use a cup or disc regardless of whether they have had penetrative sex. Comfort, anatomy, size and readiness are the key considerations.

Some people use menstrual discs with an IUD, but individual medical advice is recommended. Use a careful removal technique and avoid tugging on IUD strings.

Some people do, but the cup seal should always be fully released before removal. Speak with the clinician who inserted or manages your IUD.

Reusable life varies by brand, material, care and frequency of use. Replace the product if it develops tears, cracks, stickiness or significant deterioration.

Wash your hands, rinse and wash the product during your cycle, then sterilise it between cycles according to the manufacturer's instructions.

Neither product is automatically leak-free for every person. Correct size, fit, positioning and emptying schedule matter more than product category alone.

Some people find a pinched disc easier to insert, while others prefer a folded cup. Ease depends on anatomy, technique and personal preference.

Cups offer a stem and base, but the seal must be released. Discs do not require the same seal release, but they can sit higher and may be messier to remove.

Yes. Both cups and discs can generally be worn during walking, running, gym training, yoga and other exercise when fitted correctly.

Some users experience partial emptying while sitting on the toilet and bearing down. This is often called self-emptying or auto-dumping.

A well-fitted cup or disc should generally not be painful. Persistent pressure or pain may indicate that the product is too firm, too large or incorrectly positioned.

No. The vagina does not provide an open pathway into the abdomen. A product can move higher and become temporarily difficult to reach, but it cannot disappear inside the body.

A small amount of water-based lubricant applied to the rim may make insertion easier. Avoid oil-based lubricants unless the manufacturer confirms compatibility.

Toxic shock syndrome is rare but serious. Follow hygiene and wear-time instructions and seek urgent medical care if sudden fever, vomiting, dizziness, confusion or a rash develops.

Some discs may be worn during penetrative sex because they sit high beneath the cervix. Results vary, and the disc may still be felt, displaced or leak.

A high-capacity disc may reduce emptying frequency for some people, but fit is essential. A well-fitted cup can also work effectively for heavy periods.

They can reduce the number of single-use products required over time. Their overall environmental value depends on manufacturing, cleaning and how long the product is used.

Backup is optional but can be helpful during the learning period. Period underwear or a reusable liner may provide additional reassurance.

Some people succeed immediately, while others need two or three cycles to feel confident. Persistent pain or repeated fit problems may mean a different size or design is needed.