Swollen ankles, heavy legs, shoes that no longer fit by the afternoon. For a lot of people these are as much a part of pregnancy as the cravings, and they get talked about far less.
Compression socks are one of the simplest things that can help. But it's fair to have questions before you put anything snug on your legs while you're pregnant. This guide covers what they do, which level makes sense, when to start, and the signs that mean you need your doctor rather than a pair of socks.
One note before anything else: every pregnancy is different. Speak to your gynaecologist before starting compression, especially if you have an existing condition or any complication.
Are compression socks safe during pregnancy?
For most healthy pregnancies, yes. Moderate graduated compression socks are commonly recommended to ease leg swelling and heaviness during pregnancy. They support blood flow back up the legs, which slows as the pregnancy progresses. Check with your doctor first, particularly if you have diabetes, a circulation problem or a skin condition on your legs.
Why legs swell during pregnancy
Three things happen at once.
Your body carries more blood and fluid. Blood volume rises a great deal during pregnancy to support the baby. More fluid in the system means more of it can settle in your lower legs.
The growing uterus presses on veins. As the baby grows, the uterus puts pressure on the large veins in your pelvis that carry blood back from your legs. Blood returns more slowly, and fluid collects around the ankles.
Hormones relax your veins. Pregnancy hormones soften the walls of your blood vessels. That's useful elsewhere in your body, but it makes it harder for leg veins to push blood upward.
Swelling usually becomes more noticeable in the third trimester, and it's often worse in the evening and in hot weather. Our guide on why feet and ankles swell by evening explains the everyday side of this.
Which compression level is right?
Compression is measured in mmHg. For everyday pregnancy swelling, a moderate level of 15-20 mmHg is the usual starting point. It's supportive without feeling restrictive.
Socks at 15-20 mmHg are sold over the counter. Firmer levels, from around 20 mmHg upward, are usually sold under medical guidance and should only be used if your doctor recommends them, for example for varicose veins or a higher risk of clots. Wekynd compression socks are 15-20 mmHg, so they sit within the everyday range. Our guide to compression levels explained goes into the numbers in more detail.
Fit matters as much as level. Your feet may change size during pregnancy, so check your size against the size guide rather than assuming it's the same as before.
When in the pregnancy to start
There's no fixed rule. Many people start when swelling first becomes noticeable, often in the second trimester. If your job keeps you on your feet or at a desk all day, or you travel often, starting earlier helps prevent swelling rather than chasing it.
Put them on first thing in the morning, when your legs are least swollen, and take them off at night.
Wearing them at work while pregnant
If you're working through your pregnancy, your job has a lot to do with how your legs feel by evening. Teachers, nurses, retail staff and anyone behind a counter spend hours standing still, which is exactly when swelling builds. Desk jobs aren't much easier: sitting with your knees bent for hours slows blood flow from the legs too.
Compression socks help most on these days. Pair them with small habits that are easy to fit into a working day: a short walk every hour, a low stool to rest your feet on under the desk, and a water bottle you actually finish. If you stand for your work, shift your weight from foot to foot and don't lock your knees. There's more on this in compression socks for working women.
Getting them on when bending is difficult
This is the part nobody warns you about. Compression socks are meant to be snug, and pulling a snug sock over your heel gets harder as your bump grows.
- Sit on the bed or a firm chair. Don't try it standing up.
- Turn the sock inside out down to the heel.
- Slip your foot in and settle your heel into the heel pocket.
- Roll the rest up your leg bit by bit. Don't yank the top.
- Smooth out any wrinkles around the ankle.
Dry hands help, and a pair of rubber kitchen gloves gives you a much better grip. Later in pregnancy it's perfectly fine to ask someone at home to help. Our guide on how to put on compression socks has more tips.
Heat, humidity and an Indian pregnancy
Pregnancy already makes many people feel warmer than usual. Add an Indian summer or a sticky monsoon and a synthetic sock can feel unbearable by noon.
Look for a cotton-rich blend. Wekynd socks are 68% combed cotton with a cushioned terry sole, so they breathe better through a long day. Wash them after every wear and keep a second pair in rotation. Our comparison of cotton and synthetic compression socks explains why the fabric matters.
Other things that help alongside compression
Socks work best as one part of a routine, not the whole of it.
- Rest with your feet up for 15 to 20 minutes a couple of times a day, ideally a little above the level of your hips.
- Sleep on your left side when you can. It takes pressure off the large vein that carries blood back from your legs.
- Keep moving. Gentle walking and ankle circles keep the calf muscles pumping.
- Drink enough water. Staying hydrated helps your body let go of fluid.
- Wear comfortable shoes with a little room, since feet often swell and can even change size during pregnancy.
- Avoid standing still for long stretches where you can.
Warning signs that need a doctor, not socks
Some swelling in pregnancy is normal. Some isn't. Contact your doctor straight away if you notice:
- Sudden swelling of the face, hands or around the eyes
- Swelling in one leg only, especially with pain, warmth or redness in the calf
- A severe headache, blurred vision or pain under the ribs along with swelling
- Swelling that builds quickly over a day or two
These can be signs of pre-eclampsia or a blood clot, which need urgent care. Compression socks won't help with them, and they should never delay a check-up.
After the birth
Swelling doesn't always disappear the day your baby arrives. Your body takes a few weeks to clear the extra fluid, and many people find their feet puff up in the first days after delivery. Compression socks can help during this time too. If you've had a caesarean or any complication, ask your doctor before wearing them.
Trimester by trimester
| Trimester | What Changes | Compression Level | What to Watch For |
|---|---|---|---|
| First | Hormones begin relaxing vein walls. Swelling is usually mild. | Often not needed. 15-20 mmHg if your job keeps you on your feet. | Any sudden or one-sided swelling |
| Second | Blood volume rising. Swelling often starts to show by evening. | 15-20 mmHg for daily wear | Swelling that doesn't settle overnight |
| Third | The uterus presses on pelvic veins. Swelling is most noticeable. | 15-20 mmHg. Firmer only if your doctor recommends it. | Face or hand swelling, headaches, vision changes |
| Postpartum | Your body clears the extra fluid over several weeks | 15-20 mmHg if comfortable. Ask your doctor after a caesarean. | One-sided leg pain or swelling |
Frequently Asked Questions
Can I wear compression socks all day while pregnant?
Yes. From morning until bedtime is typical. Take them off at night.
Can compression socks harm the baby?
Moderate compression on your legs doesn't affect the baby. If you have any condition or concern, check with your doctor first.
Are maternity compression socks different from regular ones?
The compression works the same way. What matters is the level, 15-20 mmHg for everyday use, and a comfortable fit as your body changes.
Do I need a prescription?
No. 15-20 mmHg socks are sold over the counter. Firmer levels are usually sold under medical guidance.
What if I have varicose veins during pregnancy?
Speak to your doctor first. You may need a firmer level, fitted under medical guidance.
Which colour should I choose?
Whatever you'll actually wear. Wekynd comes in Purple, Yellow, Beige and Black. Beige and Black are easy to wear under work clothes, and a second colour makes it easier to rotate pairs between washes.