Sizing Guide

Find your perfect fit.

Every body is unique. Our size guide helps you choose the right Flo Angel cup — Small or Large — for a comfortable, leak-free fit.

Every body is unique

FloAngel Menstrual Cup Size Guide

When selecting the correct menstrual cup size it can be a daunting task — especially for first-time users or when changing brands. Every brand has different sizing; one brand's small might be compared to another brand's large. Our Menstrual Cup Size Guide leads you in selecting the correct Flo Angel menstrual cup size to suit your body. Remember: every body is unique, vaginas come in all different sizes and shapes, and finding the right-fit cup is important for a comfortable fit and to prevent leakages.

Flo Angel Lulu Menstrual Cups come in two sizes: Small and Large.

Flo Angel small menstrual cup for lighter flow and beginners

Small

Under 30 & no vaginal birth · active pelvic floor · low cervix · light–normal flow

Flo Angel large menstrual cup for heavier flow and longer wear

Large

Given vaginal birth · over 30 · weaker pelvic floor · high cervix · heavy flow

Size finder

What size is right for me?

Answer a few quick questions — we'll suggest your best fit.

Have you given birth vaginally?
Are you over or under 30?
Do you regularly do yoga, pilates, Kegels or other exercise?
How high is your cervix?
How would you describe your flow?
Flo Angel Size Guide

What menstrual cup size is right for me?

There are so many things in life you have to consider, and your vagina's size has certainly not been one of them… until now. Not to worry! We have put together a complete menstrual cup size guide to empower you in choosing the correct menstrual cup size for you.

FloAngel menstrual cups are soft and pliable — our period cups conform to your body shape. We are all made differently, and choosing the correct cup size will ensure a more comfortable fit.

When it comes to choosing the correct menstrual cup size, there are two main factors to consider:

Have you given birth vaginally?

Are you over or under the age of 30?

With these factors in mind, we recommend the following:

  • Large If you have given a vaginal birth
  • Small If you have given birth with a C-section and are under the age of 30
  • Small If you are under 30 and have never given birth
  • Large If you are over the age of 30

There are times when you would have to consider other variables when selecting the correct menstrual cup size for you. These include the following.

Are you a virgin or teenager?

Menstrual cups can be worn at any age once menstruation starts. We do recommend that users are comfortable with their body before using a menstrual cup.

Using a menstrual cup can potentially stretch or cause changes to the hymen, but it's important to understand that the hymen is a flexible and stretchable piece of tissue that naturally changes over time due to various activities and hormonal changes.

Here's some information to consider:

  1. 1 Flexibility:

    The hymen is a thin membrane located at the opening of the vagina. Using a menstrual cup may stretch the hymen slightly, similar to how inserting a tampon or engaging in physical activities can. This stretching is usually minimal and not indicative of loss of virginity or any harm.

  2. 2 Normal Activities:

    Everyday activities like walking, running, riding a bike, or even using your fingers to explore your own body can also stretch or change the hymen. Many girls and women have hymens that naturally have an opening or are more flexible.

  3. 3 Comfort and Relaxation:

    Proper insertion of a menstrual cup involves relaxation and ensuring that the cup is inserted correctly. It's important to use a cup that is the right size for you and to follow the recommended insertion and removal instructions to minimise any potential discomfort.

  4. 4 Virginity Myth:

    The concept of "virginity" is complex and varies culturally. The state of the hymen does not determine someone's virginity. Virginity is a social and cultural construct and has different meanings in different societies.

If you have concerns about using a menstrual cup and its potential impact on your hymen, consider speaking with a healthcare provider for accurate information and guidance.

Pelvic floor tone and strength

Menstrual cup size selection may be different due to pelvic floor strength and tone. Pelvic floor strength is influenced by a combination of factors, including genetics, lifestyle, hormonal changes, pregnancy and childbirth, age, and certain medical conditions.

The pelvic floor is a group of muscles and tissues that provide support to the pelvic organs (such as the bladder, uterus, and rectum) and play a crucial role in various bodily functions.

If you regularly do pelvic floor exercises, lead an active lifestyle, or do other exercises like yoga or pilates, we recommend the size Small — whether you have given birth vaginally or not.

There might be various reasons for a woman to have a weaker pelvic floor:

  • A sedentary lifestyle
  • Hormonal fluctuations and changes with age
  • Chronic constipation
  • Obesity
  • High-impact activities that strain the pelvic muscles
  • Medical conditions such as prolapse, neurological conditions and surgical procedures

In the case of weaker pelvic floor muscles, the suitable menstrual cup size will be the Flo Angel Large Menstrual Cup.

Cervical height

Cervix height refers to the position of the cervix within the vaginal canal. It can move up and down throughout your menstrual cycle and can affect your comfort and the fit of a menstrual cup.

Understanding your cervix height can help you select a menstrual cup size that fits well and is comfortable to wear. There are generally three categories:

Low cervix

  • If you can easily reach your cervix with your finger, you likely have a low cervix.
  • Your cervix is closer to the vaginal opening.
  • A shorter cup will be more comfortable.

Medium cervix

  • If you can reach your cervix at about your second knuckle, you likely have a medium cervix.
  • Your cervix is in the middle of the vaginal canal.
  • Most standard-sized cups work well.

High cervix

  • If you need to insert your finger deeply to reach your cervix, you likely have a high cervix.
  • Your cervix is located deeper in the vaginal canal.
  • A longer cup will provide a more comfortable fit.

To determine your cervix height, follow these steps:

  1. Wash your hands thoroughly.
  2. Insert a clean finger into your vagina until you feel your cervix. Note how far you can insert your finger before touching your cervix.
  3. Based on your findings, choose a menstrual cup length that corresponds to your cervix height.

If you have a short vaginal canal (low cervix), please choose a small menstrual cup size. Flo Angel Lulu Menstrual Cups have a trimmable stem — if you find the stem uncomfortable, you can simply cut it shorter. For a long vaginal canal (high cervix), we recommend a large cup.

It's important to note that pelvic floor strength and health can be improved through targeted exercises known as Kegel exercises. If you have concerns about your pelvic floor health or are experiencing symptoms such as urinary incontinence or pelvic pain, consult with a healthcare provider or pelvic floor physical therapist for personalised guidance.

Period flow rate and flow volume

Period flow rate and volume are two distinct but related aspects of menstrual bleeding. Understanding both can help you choose the right menstrual cup size for you.

Period flow rate

Flow rate refers to how quickly or slowly menstrual blood is expelled from the body:

Flow rate Blood loss Change product roughly every…
LightMinimal blood loss6–8 hours
ModerateSteady blood loss4–6 hours
HeavySignificant blood loss2–4 hours
Very heavyExceptionally heavy blood loss1–2 hours

Period flow volume

Flow volume refers to the amount of menstrual blood expelled over a specific period:

Flow volume Typical sanitary products per day
LightFewer than three small-sized products
ModerateThree to five regular-sized products
HeavyMore than five regular-sized products, or a mix of regular and overnight
Very heavyFrequent changes and high-absorbency products

Menstrual cup usage and flow

  • Choosing the right size: Understanding your flow rate and volume helps you choose a cup with the appropriate capacity and comfort level.
  • Emptying frequency: Knowing your flow rate and volume helps you estimate how often you need to empty the cup to prevent leakage and discomfort.
  • Monitoring and comfort: Flo Angel menstrual cups have measurement lines to aid in gauging your flow volume.

If your monthly flow is very heavy, the large menstrual cup size would be more suitable. For a light to normal flow, the small menstrual cup size would be perfect. Those with a heavy flow might consider buying both sizes — wear the large for the first 2–3 days, then switch to the small for the remainder.

Flo Angel menstrual cups can hold the equivalent of 3 to 4 tampons, giving you up to 12 hours of continuous wear before you have to empty and reinsert. No matter what size you choose, you'll have a lot more freedom using a period cup than any other alternative period-care product.