How to insert

Step 01 /

Wash your hands.
Sit on the toilet and relax.
Pinch the disc in half.

Disc characteristics diagram
Illustration of pinched disc

*Flex Plant+ Disc is body-safe, hypoallergenic, and made without natural rubber latex, BPA, or phthalates. Be sure to inspect your disc once removed from the wrapper for tears or damage in the catch. Do not use a damaged disc.

Step 02 /

Use a clean finger to push the disc back and down toward the cervix. Push the disc inside the vagina as far as it can comfortably go. It may feel strange but it shouldn’t hurt.

Illustration of a pinched disc, notch pointing upwards

Step 03 /

Use your thumb to tuck the disc upward and behind your pubic bone. If inserted properly, you should not be able to feel the disc internally (AKA with your vagina).

Illustration of various insertion positions: sitting, squatting, standing

Should damage to the disc occur during insertion, do not use, please discard.

mid-wear experience



A small amount of leaking may occur, but this is normal with all period products (ever sneezed with a tampon in on your heaviest day?). Consider wearing a panty liner or pad while you’re figuring out what works best for you and your flow.



While on the toilet, you can release the blood hands-free by bearing down as if you’re trying to poop. The contents should fall into the toilet while the disc remains in place.



Repeat the thumb trick after using the bathroom to make sure the disc is in the proper position all day long.

How to remove

Step 01 /

Wash your hands. Relax your pelvic muscles.

Hook your finger (either your thumb nail-side up or forefinger nail-side down) under the rim of the disc. Pull straight out, keeping the rim parallel to the floor.

Disc removal diagram

Step 02 /

If needed, help push the disc out by bearing down as if you’re trying to poop. Empty fluid into the toilet.

Disc removal diagram

Step 03 /

Open a new disc and set aside on a clean surface (like your thigh).

Step 04 /

Place the used disc in the new disc’s wrapper (or toilet paper, or Flex Eco Disposal Pouch) and toss in the trash.

Thumbs up illustration with text "you got this"


Not sure if the disc is in the right place?

Let the pubic bone guide you. Feel toward your belly for a firmer part of the vaginal wall that doesn’t move, then tuck the disc up and behind it. If the disc becomes dislodged, or you find it where you’d expect a tampon to be, push it back up and behind the pubic bone.

If you can feel any part of the disc with your finger, that’s normal. The vagina is only about 2-3 inches deep when not aroused. As long as the disc is tucked up and behind the pubic bone, you’re set.

Every body is different. Find what works with your anatomy. Use your thumb to push the disc into place. Stand with one leg elevated. Squat all the way down to the floor. Lie down with your knees pulled into your chest. Experiment with different techniques until you feel confident.


On heavy days, sit on the toilet and bear down as if you’re trying to poop. This will empty the contents of the disc without having to remove it.

Leaking after using the bathroom? The disc likely came untucked while on the toilet. After washing your hands, insert a clean finger to tuck the disc up and behind the pubic bone.

Protect yourself. Consider wearing a pantyliner or pad as a backup while you’re learning what’s best for you.


Use pursuant to directions and during menstruation only. Dispose in trash. Do not flush Flex Plant+ Disc down the toilet. Keep Flex Plant+ Disc away from children and animals. If you experience any adverse events such as but not limited to nausea, pain, and/or lightheadedness with Flex Plant+ Disc, discontinue use immediately and consult with your physician. Consult your doctor if you are using an intrauterine device (IUD). While uncommon, there is a risk of dislodging, displacing, or removing the IUD by pulling on the IUD string when removing Flex Plant+ Disc. If you have ever had Toxic Shock Syndrome (TSS), do not use Flex Plant+ Disc or any other internally-worn product. Immediately following childbirth, gynecological surgery, miscarriage, or termination of pregnancy, consult your physician before using Flex Plant+ Disc.

Maximum wear time is twelve (12) hours—it must be changed after twelve (12) hours. Do not use the same Flex Plant+ Disc twice. Flex Plant+ Disc is not a contraceptive and does not provide protection against sexually transmitted infections (STIs).

Do not use any foreign objects to assist with removal as this may cause damage to the disc or your vaginal canal. In the rare case you are unable to remove your Flex Plant+ Disc after 12 hours, contact a physician. If you experience any adverse events with Flex Plant+ Disc, discontinue use and consult with your physician.

If your disc arrives damaged, please do not use and reach out to customer service at +1 800 931 0882 or


To date, we have not had any reported cases of TSS.
The bacterium Staphylococcus Aureus is believed to cause TSS. Although TSS can occur in anyone, it is a disease that mostly affects menstruators who use tampons. Population studies suggest that the risk of TSS is related to tampon absorbency; the higher the tampon absorbency, the higher the risk of contracting TSS. Likewise, the lower the absorbency, the lower the risk of TSS. Unlike tampons, Flex Plant+ Disc is non-absorbent; it collects rather than absorbs menstrual fluid. While no studies have shown that the Flex Plant+ Disc promotes the growth of Staphylococcus Aureus, testing has not been extensive enough to date to quantify the risk of TSS, if any, while using Flex Plant+ Disc. As a precaution, users must change Flex Plant+ Disc after 12 hours maximum wear time. TSS is a rare but serious disease that may cause death. Warning signs include sudden high fever, vomiting, diarrhea, a rash that looks like a sunburn, dizziness, fainting or near fainting, and muscle aches. TSS can progress rapidly from flu-like symptoms to a serious illness that can be fatal. If you have any of these signs and you are using the Flex Plant+ Disc, remove it and immediately contact your physician.

Understanding your body while mastering a new skill is no easy feat, but we promise it’s worth it. Here are three tips to making Flex the last period product you’ll ever try:


    It shouldn’t be a mystery you know nothing about. Check out for tips and tricks.


    It’s normal to have trial and error
    while you get the hang of something completely new.


    We want this to work as much as you do. Reach out and talk with a real
    human being. Text:

    1 800 931 0882

This user guide is informational in nature and is not offered as medical advice, nor does it substitute for a constultation with your physician. If you have any gynecological/medical concerns or conditions, please consult your physicians prior to using a menstrual disc.

FLEX® is a registered trademark and FLEX PLANT+ DISC™ is a trademark of The Flex Company in the U.S. and elsewhere. Pat.
©2021 The Flex Company. All rights reserved.

GPD-0018 Rev B PN 10139