Menstrual Hygiene: The Complete Guide to Pads, Tampons, Cups and Period Underwear

Menstrual hygiene is the practice of managing your period cleanly and safely: using an absorbent or collecting product, changing or emptying it often enough, washing your hands, and disposing of or cleaning products correctly. Good habits keep you comfortable and lower the small but real risk of infection. This guide surveys every product type and the evidence behind each choice.

Written by Lily Hart, MPH, this hub page routes you to detailed articles on each topic. Think of it as the map; the linked pages are the territory.

First, a quick note on wording

Language around periods is confusing, and two similar terms are easy to mix up.

A sanitary towel (British English) is the same thing as a menstrual pad or sanitary pad in American English: an absorbent strip you attach to your underwear. It is a period product.

A sanitation towel (or sanitizing towel) is a cleaning cloth or disinfecting wipe for surfaces and hands. That is the primary meaning behind this site’s homepage. The two phrases sit one letter apart, so search engines and shoppers blur them constantly.

This page is strictly about the first meaning: period care. If you landed here looking for surface-cleaning cloths, the home surface hygiene hub is where you want to be.

Why menstrual hygiene matters

The World Health Organization frames menstrual health as a matter of basic rights and public health, not just personal preference. WHO defines it as everyone who menstruates having access to information, to the products they need, to water and sanitation and disposal facilities, and to competent healthcare. In its 2022 statement on menstrual health and rights, WHO stressed that periods should be managed with dignity, safety, and without stigma.

On the practical side, the payoff of good hygiene is concrete: fewer skin irritations, less odor, and a lower chance of the rare infections associated with leaving a product in too long. None of this requires expensive products. It requires the right product for your flow and a sensible changing routine.

The five main types of period products

There is no single best product. The right choice depends on your flow, your body, your daily life, and your budget. Here is the landscape at a glance, followed by a comparison table.

1. Pads (sanitary towels)

Pads are absorbent strips that stick to the inside of your underwear and catch flow externally. They come in liners (for very light days or discharge), regular, and overnight or maxi sizes. Because nothing is inserted, pads carry no toxic shock syndrome risk and are the standard first product for teens starting their period. The tradeoff is that they can feel bulky and are visible under tight clothing.

The drugstore-staple brands are a reasonable place to start; our deep dive on Always sanitary towels breaks down the ranges by absorbency and length. For anyone with a demanding flow, see sanitary pads for heavy flow, which covers overnight and maxi options built for volume.

2. Tampons

Tampons are compressed cotton or rayon cylinders inserted into the vagina to absorb flow internally, with a string for removal. They are discreet, work under swimwear, and disappear under any outfit. Their downside is the one every box warns about: worn too long or at too high an absorbency, they carry a small toxic shock syndrome risk (covered below).

The United States Food and Drug Administration standardizes tampon absorbency into labeled ranges (from Light through Ultra), so a “Regular” from one brand absorbs a comparable amount to a “Regular” from another. If you are curious how much a single tampon actually holds by absorbency grade, our article on how much blood a tampon holds puts numbers to it.

3. Menstrual cups

A menstrual cup is a flexible silicone or rubber bell that sits low in the vagina and collects flow rather than absorbing it. You empty, rinse, and reinsert it, then sterilize it between cycles. A single cup can last for years, which makes it the most economical and lowest-waste option over time. The learning curve is steeper: insertion and removal take practice, and you need a clean water source to rinse.

4. Period underwear

Period underwear looks like ordinary briefs but has built-in absorbent, leak-resistant layers. The NHS describes it as fabric that soaks up blood the way a pad does, then gets washed and reused. It works well as a standalone product on light-to-medium days and as backup on heavy days. The main considerations are dry time after washing and a higher upfront cost per pair.

5. Reusable cloth pads

Washable cloth pads snap around your underwear and function like disposable pads, but you launder and reuse them. They appeal to people who want fewer disposables and less skin contact with synthetics. They require a washing routine and a way to store used pads until laundry day.

Comparison at a glance

Product	How it works	Typical change or empty interval	Reusable	TSS risk	Best for
Pads / sanitary towels	Absorbs externally	Every few hours	No (disposable) / Yes (cloth)	None	Beginners, overnight, sensitive to insertion
Tampons	Absorbs internally	Every 4 to 8 hours	No	Small, real	Swimming, discretion, active days
Menstrual cups	Collects internally	Up to about 12 hours	Yes, for years	Low, follow instructions	Long wear, low waste, cost savings
Period underwear	Absorbs in built-in layers	Varies by flow and design	Yes	None	Backup, light days, overnight
Reusable cloth pads	Absorbs externally	Every few hours	Yes	None	Low waste, sensitive skin

Change intervals reflect general guidance from the FDA, CDC, and NHS; always follow the wear-time on your product’s packaging.

How to choose the right product

Three questions narrow it down fast.

What is your flow? On light days, a liner, a regular tampon, or period underwear alone may be plenty. On heavy days, you may want a maxi pad, a higher-absorbency tampon, a larger cup, or a pad-plus-underwear combination. The FDA’s guidance is to always use the lowest tampon absorbency that handles your flow, not the highest “just in case.” If your flow itself is very heavy, that is worth a closer look; sanitary pads for heavy flow covers products, and the “when to see a doctor” section below covers red flags.

What does your day look like? Swimming or a long day away from a private bathroom favors tampons or a cup. A relaxed day at home suits pads or period underwear. Overnight, many people prefer a pad or period underwear so they are not watching the clock on tampon wear time.

How sensitive is your skin? If pads leave you itchy or irritated, ACOG’s general guidance is to favor unscented products, since fragrances are a common irritant. Breathable cotton-topped pads, cloth pads, or switching to an internal product can all help. Persistent irritation, unusual discharge, or a genuine allergic reaction is worth raising with a clinician.

You do not have to pick one product forever. Many people mix and match: tampons or a cup by day, a pad or period underwear at night, liners on the tail end.

Menstrual hygiene best practices

The specific mechanics matter more than the brand. These practices come straight from the CDC, FDA, and ACOG.

Wash your hands

The CDC’s first instruction is to wash your hands both before and after changing any menstrual product. Clean hands limit the bacteria you introduce when inserting or removing a tampon or cup.

Change on a schedule, not just when it leaks

• Pads: The CDC advises changing pads every few hours regardless of how light the flow seems, and more often when it is heavy. A damp pad against skin is a source of irritation and odor.
• Tampons: The FDA, CDC, and ACOG all converge on changing a tampon every 4 to 8 hours, and never wearing one for more than 8 hours at a stretch. A useful FDA tip: if a single tampon lasts a full eight hours without needing a change, its absorbency is probably higher than you need. (The NHS uses a more conservative 4-to-6-hour window; either way, the ceiling is firm.)
• Menstrual cups: These hold more and can generally stay in up to about 12 hours before emptying, per NHS guidance, though heavy days call for emptying sooner.

Handle toxic shock syndrome awareness

Toxic shock syndrome (TSS) is rare but serious. It is a bacterial toxin illness historically linked to high-absorbency tampons left in too long, which is exactly why the change intervals above exist. The Mayo Clinic describes classic warning signs as a sudden high fever, a rash that resembles a sunburn, vomiting or diarrhea, muscle aches, and feeling dizzy or faint.

If you develop those symptoms while using a tampon or cup, remove it and seek medical care immediately. TSS can progress quickly. The everyday prevention is straightforward: use the lowest absorbency that works, respect the 8-hour ceiling, and consider a pad overnight so a tampon is not in place for a long sleep.

Dispose of products correctly

The CDC is explicit: wrap used pads and tampons in toilet paper or tissue and put them in a trash bin. Do not flush menstrual products down the toilet. Even products labeled “flushable” can clog plumbing and cause sewage problems. Tampon applicators and wrappers go in the trash too.

Clean reusable products the right way

Reusables save money and waste but only stay safe if you clean them properly.

• Menstrual cups: The CDC recommends rinsing the cup thoroughly during your period and, once your period ends, sanitizing it by placing it in boiling water for one to two minutes. Follow your brand’s instructions for the exact time.
• Period underwear and cloth pads: Most are machine washable. Rinse in cold water first (hot water can set stains), then launder per the product directions. Our sister content on how to sanitize laundry covers wash temperatures and additives if you want your period laundry to come out genuinely hygienic, and does vinegar disinfect laundry settles a common myth about what a vinegar rinse actually does.

For more on the laundry side of reusable period care, the laundry hygiene hub pulls those methods together.

When to see a doctor

Menstrual hygiene is mostly self-managed, but some signs point to a medical issue rather than a product problem. Talk to a healthcare provider if you notice any of the following.

Bleeding that is too heavy. ACOG defines heavy menstrual bleeding as soaking through one or more pads or tampons every hour for several hours in a row, needing to double up on protection, waking overnight to change, passing clots the size of a quarter or larger, or bleeding that lasts more than seven days. ACOG specifically says that if you are changing a pad or tampon nearly every hour, you should talk with your provider. Heavy bleeding can lead to iron-deficiency anemia and sometimes signals an underlying condition. Our detailed guidance lives in sanitary pads for heavy flow.

Emergency-level bleeding. ACOG advises seeking emergency care if you are soaking through a pad or tampon every hour for more than two hours in a row and you feel chest pain, shortness of breath, lightheadedness, or dizziness.

Signs of toxic shock syndrome. Sudden high fever, sunburn-like rash, vomiting, and dizziness while using an internal product are a call-your-provider-now situation, as described above.

Unusual odor, discharge, or pain. A strong or foul odor that is not the normal metallic smell of menstrual blood, unusual colored discharge, or new pelvic pain can indicate an infection and deserves evaluation.

A couple of related situations come up often. If you have a medical scan on the horizon, our piece on wearing a menstrual pad during an MRI explains which products are safe in the scanner. And for the recurring “how much is normal” question, how much blood a tampon holds gives you a concrete yardstick.

The bottom line

Good menstrual hygiene comes down to a short list: pick a product matched to your flow, use the lowest tampon absorbency that works, change on schedule, wash your hands, dispose of or clean products correctly, and know the handful of warning signs that mean “call the doctor.” Everything else is personal preference, and mixing products across a single cycle is completely normal.

Use the linked articles above to go deeper on whichever product or question is yours right now, and return to the homepage if it was actually cleaning cloths, not period care, that you were after.

This guide is educational and does not replace individual medical advice. Sources cited inline include the FDA, CDC, ACOG, WHO, the NHS, and the Mayo Clinic.

Frequently asked questions

What is the difference between a sanitary towel and a sanitation towel?

A sanitary towel is British English for a menstrual pad, an absorbent strip worn in your underwear during your period. A sanitation towel (or sanitizing towel) is a cleaning cloth or disinfecting wipe for surfaces and hands. The terms sit one letter apart and are frequently confused, but they are completely different products for completely different purposes.

How often should you change a tampon?

The FDA, CDC, and ACOG all recommend changing a tampon every 4 to 8 hours and never wearing a single tampon for more than 8 hours. The NHS suggests a slightly shorter 4-to-6-hour window. Always use the lowest absorbency that handles your flow; if one tampon lasts a full 8 hours, the absorbency is likely higher than you need.

Which menstrual product is safest?

Pads, period underwear, and cloth pads carry no toxic shock syndrome risk because nothing is inserted, which is why pads are the standard first product for teens. Tampons and menstrual cups are safe when used as directed, but you must respect wear-time limits. The safest product is the one matched to your flow and used correctly, whichever type that is.

How do you clean and sanitize a menstrual cup?

The CDC advises rinsing the cup thoroughly during your period each time you empty it, then sanitizing it after your period ends by placing it in boiling water for one to two minutes. Always follow your specific brand's instructions for exact timing. A properly cleaned silicone cup can safely last for several years.

When should heavy menstrual bleeding prompt a doctor's visit?

ACOG says to contact a provider if you soak through a pad or tampon every hour for several hours, need to double up on protection, wake overnight to change, pass clots the size of a quarter or larger, or bleed longer than seven days. Seek emergency care if you soak through hourly for more than two hours and feel chest pain, shortness of breath, or dizziness.

Can you flush tampons or pads down the toilet?

No. The CDC is explicit that you should wrap used pads and tampons in toilet paper or tissue and place them in a trash bin, never the toilet. Even products labeled flushable can clog plumbing and cause sewage problems. Applicators and wrappers also belong in the trash, not the toilet.