Using a sanitary pad is straightforward: you peel off the backing, stick it to the inside of your underwear, and change it every two to three hours. But there are details worth knowing to stay comfortable, avoid leaks, and keep your skin healthy throughout your period. Here’s everything you need.
How to Put On a Pad
Start by washing your hands. Unwrap the pad and you’ll see a long adhesive strip running down the back. Some pads also have smaller flaps on each side called wings, each with their own adhesive strip.
Peel off the paper backing from the main adhesive strip. Place the pad sticky-side down onto the crotch of your underwear, centering it so the widest part sits directly beneath you. Press it down firmly so it doesn’t shift around. If the pad has wings, fold them over the edges of your underwear and press them against the outside of the fabric. The wings hold the pad in place and help prevent blood from leaking over the sides.
That’s it. Pull your underwear up and adjust until it feels comfortable. Snug-fitting cotton underwear works best because it keeps the pad from sliding. Loose underwear or thongs won’t hold a pad securely.
Choosing the Right Pad for Your Flow
Pads come in several absorbency levels, and picking the right one makes a real difference. A light-day pad holds roughly 4 mL of blood, while heavy-day pads hold anywhere from 30 to 50 mL depending on the brand. Most people bleed more heavily during the first two or three days and taper off toward the end.
A practical approach is to use a heavier pad during your first couple of days and switch to a lighter or regular pad as your flow decreases. Overnight pads are longer in the back to catch leaks while you sleep, so save those for bedtime. If you find yourself soaking through a heavy pad in under two hours consistently, that’s worth bringing up with a doctor, as it can signal an underlying issue.
How Often to Change Your Pad
Change your pad every two to three hours, even if it doesn’t look fully soaked. This isn’t just about absorption. Warmth and moisture create conditions where bacteria thrive, and wearing the same pad for too long increases your risk of irritation and odor. On lighter days you might feel like you can stretch it longer, but sticking to the two-to-three-hour window is the safest habit.
At night, use an overnight pad right before bed and change it first thing in the morning. Sleeping six to eight hours with a single pad is generally fine since you’re lying down and blood flow slows.
How to Dispose of a Used Pad
When it’s time to change, peel the used pad off your underwear. Roll it up tightly starting from one end so the soiled surface ends up on the inside. The adhesive on the outside will help it stay rolled.
Wrap the rolled pad in a piece of toilet paper, the wrapper from your new pad, or any scrap of paper. This keeps things hygienic and contains odor. Then toss it in the bathroom trash. If you’re in a public restroom, most stalls have a small disposal bin on the wall for exactly this purpose.
Never flush a pad down the toilet. Pads are designed to absorb and expand, so they will clog pipes and can cause serious plumbing damage. The wrapper and paper liner shouldn’t be flushed either.
Preventing Skin Irritation
Some people develop a rash or itching from wearing pads, sometimes called pad dermatitis. The main culprit is usually the materials in the pad itself, particularly chemical preservatives used during manufacturing. If you notice redness or itching along the areas where the pad contacts your skin, switching brands may not be enough, since many use similar chemicals. Look for pads labeled “hypoallergenic” or made with organic cotton, which tend to contain fewer irritating additives.
Changing your pad frequently is one of the best things you can do for your skin. Prolonged contact with moisture breaks down the skin’s protective barrier. Wearing breathable cotton underwear also helps. If irritation persists across multiple brands, a dermatologist can do patch testing to identify the specific allergen.
What Your Pad Can Tell You About Your Health
The color of blood on your pad changes throughout your cycle, and most of those changes are completely normal. Bright red blood is common at the start of your period when flow is fresh and heavy. As your period progresses, blood sits longer before leaving your body and reacts with oxygen, turning dark red, brown, or even black. This darker blood toward the end of your cycle is nothing to worry about.
Pink blood often shows up on lighter days when menstrual blood mixes with cervical mucus. Small clots are also normal. They form when blood vessels in the uterine lining tear as it sheds. Large clots, especially ones bigger than a quarter, can be a sign of fibroids or polyps.
Colors that do warrant attention: orange, green, or gray tinges in your blood or discharge can signal an infection such as bacterial vaginosis or a sexually transmitted infection like trichomoniasis.
Pads and Toxic Shock Syndrome
Toxic shock syndrome (TSS) is a rare but serious bacterial infection most commonly linked to tampons, particularly when a single tampon is left in too long or when high-absorbency tampons are used throughout the entire period. Because pads sit outside the body, they carry a significantly lower risk. In a study of over 750 girls using either menstrual cups or sanitary pads, no cases of TSS were reported among pad users. This external placement is one of the reasons pads are often recommended for younger people or anyone who wants to minimize TSS risk.
Tips for Using Pads at School or Work
Keep a small pouch or opaque bag in your backpack or desk with a few pads, a spare pair of underwear, and a plastic bag for emergencies. The plastic bag is useful if you need to wrap a used pad when there’s no trash bin nearby.
If you’re worried about leaks during long classes or meetings, wearing dark-colored bottoms on heavier days gives you peace of mind. Pairing a regular pad with a thin panty liner as backup is another option, though simply using the correct absorbency level and changing on schedule handles most situations. Over time, you’ll learn your own flow pattern and be able to predict which days need heavier protection.