Panty liners and discharge: how daily use can disrupt the intimate area

Even so, that supposed protection can quietly create problems.

Anyone wanting to catch vaginal discharge or simply feel “fresher” often ends up choosing thin panty liners. They sit discreetly, cost little and are sold almost everywhere. That everyday convenience is exactly why they’re so popular. Yet specialists in gynaecology and intimate health are raising concerns: using them every day can alter the delicate environment of the intimate area - with effects many people only notice once itching, burning or an unpleasant odour has already started.

Why discharge isn’t a “fault” but a protective mechanism

Before looking at panty liners, it helps to understand discharge itself. Many people find it annoying or embarrassing. From a medical standpoint, however, it serves an important function.

So-called cervical mucus is produced in the cervix. It contains lactic acid bacteria that help keep the vaginal flora stable. These bacteria maintain an acidic pH value - a natural protective barrier against fungi, viruses and harmful bacteria.

“Normal, unremarkable discharge shows in most cases that the intimate area is working healthily - not that something is ‘wrong’.”

As long as the discharge is clear to whitish, has no strong smell and there is no pain or itching, it is generally considered harmless. It can vary across the menstrual cycle, increase during stressful periods, or look different at certain stages of life (puberty, pregnancy, breastfeeding, menopause).

How panty liners throw off the balance in the intimate area

Many people use a panty liner specifically to “buffer” this discharge. The issue is that the liner doesn’t just absorb moisture - it also changes the entire microclimate inside underwear.

Problem 1: Plastics and chemicals on sensitive skin

Most conventional panty liners are not made from pure cotton, but from a mix of plastics, synthetic fibres and various additives. These can include halogenated organic compounds - substances that contain chlorine, bromine or iodine.

Such ingredients are intended to make liners more absorbent, prevent yellowing and ensure a product that looks visibly “clean”. For the vulva, however, they can be problematic:

• higher allergy risk due to certain chemical compounds