Period Underwear : Basic Know Hows

Period underwear is gaining it’s popularity among women. It’s environmental friendly, comfortable, sustainable, and saves you an extra coin in the long run. It’s definitely a game changer in the menstrual hygiene products that I believe you should have.

Today’s article will narrow down to:

  • What period underwear is
  • How period underwear works
  • How to take care of period underwear
  • Can you wear period underwear for a full day
  • Can you wear period underwear for postpartum flow
  • How many period underwear you need

What is period underwear?

Period underwear is underwear that is meant to absorb period blood during menstruation. It is a recent creation made to act as a substitute to sanitary pads, tampons, or menstrual cups. They come in light flow, medium flow and heavy flow versions and have three layers that work in your favour. Yay!

The layers are designed as follows:

  • A top layer
  • A middle layer
  • A leak resistant layer

Some period underwear have a layer that helps prevent bad odors from forming during the day.

One period underwear can absorb blood four tampons would in a day. It is therefore important to buy enough period underwear to last you through your cycle.

How does period underwear work?

A period underwear has three layers that work in your favour. The top layer absorbs menstrual blood but at the same time stays dry keeping you dry and comfortable.

The middle layer has absorbent materials in it. These materials absorb blood that two to four tampons would absorb in a day. Effective, yes!

The leak resistant layer is the third and outer layer. It prevents staining on your clothes and any possible leaks from happening.

Research has shown that most users start using period underwear on their lighter flow days before settling for them fulltime. You can experiment with them on one of your nights during your flow just to be sure of their credibility before settling for them.

How to take care of period underwear

Given that period underwear are reusable, they need care and attention for them to serve you without any complications. That is inclusive of washing and storage.

Washing period underwear

Washing period underwear is not as hard as you are probably imagining. You can follow the following steps in your wash routine.

  • Soak your period underwear once you are done. Soak in cold water for an hour or so then rinse them off.
  • Wash them with water and mild unscented soap for them to last longer. You can hand wash them or use a washing machine. If using a washing machine, consider putting the underwear in a mesh bag first. Washing machines are very vigorous and may reduce the durability of your period underwear.
  • Once done washing, just like normal underwear, dry them in the sun or open air. We want to avoid the formation of bacteria on a damp period underwear. Don’t forget, they are thicker around the crotch area.

You can also soak your period underwear in a water and vinegar mixture, ratio 2:1. This helps reduce the chances of your period underwear getting a bad odor or getting any stains from your period flow.

When it comes to storage, you can store them with the same care you would your normal underwear. Have a different drawer for them to, to help you distinguish them and access them easily during your periods.

Can I wear period underwear for a full day?

Yes you can! Period underwear is designed to absorb the amount of blood two or four tampons can absorb in a day. Medical practioners recommend that you change a period underwear 8-12 hours after wearing it. That’s a full day in the office.

Ensure you know what flow category your periods are in. This helps you pick a particular period underwear suitable for your flow.

Can I wear period underwear for my postpartum bleeding?

Unfortunately, no. Postpartum bleeding is heavier than any normal menstrual flow and period underwear is not designed for that. You may however wear a pad in conjunction with the period underwear.

How many period underwear do I need?

You can buy as many as you want to last you through your cycle. Ensure that you buy period underwear suitable for your flow. You may also consider buying period underwear for how your flow varies through your cycle. On light days, you can have a light flow period underwear on and vice versa.


Period underwear is one the many great inventions made to help during menstruation. Take care of them, and they will take care of you.

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