Pressure from an elastic that sits too tight

Short answer: A groove in the skin after a waistband means the pressure is gathered over too little skin. A wider elastic solves it more often than a bigger size. If the groove does not go within an hour, the elastic sat too tight. If you have lasting discomfort, talk to your doctor.

What the groove means

A visible dent in the skin after a waistband shows that pressure was gathered over a narrow area. The skin has been pressed, and the mark is its way of showing it. It is common and often harmless, but it is also a sign you can use. It tells you where and how much the elastic pressed.

How long it may stay

The groove should fade within an hour of taking the clothes off. If it lasts several hours, the elastic sat too tight. Check the mark in the evening and note how deep it is and how long it stays. If it is deep and long lasting, it is time for a different waistband or a different fit.

Width beats size

The same grip spread over four centimetres instead of one gives a quarter of the pressure per square centimetre. That is why wide waistbands feel softer. Many choose a bigger size for relief, but a wider elastic often solves it better. A bigger size may slip down instead and bring new problems.

Look at the edge of the elastic

A narrow elastic with a hard edge cuts in even when the size is right. Choose a waistband with a soft, flat edge that lies evenly against the skin. Feel it from the inside before you buy and check that the seam is smooth. An elastic without a distinct edge is often more comfortable across a whole day.

When to change size

If the groove goes all the way round and not only where you sit, the garment is too small. A wider waistband will not help enough, and you should try one size up. If the groove is only at the front or only at the side, that points to a waistband that sits crooked or is too narrow. See bamboo panties and find a model with a wide waistband.

Underpants for men

Underpants with a wide waistband spread pressure over more skin, and many notice it most in sedentary work. Choose a fit that does not roll down at the waist and does not cut in at the groin. If the waistband lies flat and even, it is easy to forget. See bamboo underpants for men and read the details on waistband and fit.

Sock tops

Socks can also leave a groove, often just above the ankle or below the knee. The groove shows that the top is too narrow or too tight for your leg. Choose a sock with a wide, soft top that sits without pressing. See bamboo socks for women and read the description of the top before choosing a size.

Why it is worse in the evening

The body holds more fluid late in the day, and everything sits tighter. That is why a waistband that felt fine in the morning can leave a clear groove in the evening. Choose clothes with a little air at the waist and legs, and remember that this also applies on warm days. Change into something looser when you get home.

Can you stretch an elastic

Only temporarily. An elastic contracts again after washing, so it is no lasting fix. Choose instead a waistband that fits from the start, and replace the garment when the elastic is worn and loses its shape. If you are unsure what the grooves mean, or it hurts, talk to your doctor.

Frequently asked questions

Is a groove dangerous

No, if it fades within an hour. If it lasts longer, choose something looser. If you have doubts or discomfort, talk to your doctor.

Why is it worse in the evening

The body holds more fluid late in the day, and everything sits tighter. Choose a waistband with a little air and you will feel less of it in the evening.