A member asked:

Why am i getting varicose veins while pregnant?

64 doctors weighed in across 14 answers

Pressure on veins: As the baby and uterus start to grow they exert pressure over the pelvic and leg veins. This pressure can lead to varicose veins in some women. Depending on the patient the varicosities may or may not go away after delivery.

Answered 10/13/2013

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Dr. Lornell Hansen answered

Specializes in Phlebology

Agree: I do feel that if you are starting to have varicose veins your physician should get you into a pair of thigh high graduated compression stockings preferably 20 to 30 mmhg otherwise known as class i stockings.

Answered 1/5/2019

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Venous Hypertension: Pressure on your pelvic veins, from your baby, is making it harder for blood to return to your heart from your legs. As the blood accumulates, pressure builds in the deep and superficial venous system. You can think of varicose veins as little pop-off valves that are relieving this increased pressure by providing a space for your other veins to decompress into.

Answered 3/17/2012

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Dr. Steven Zimmet answered

Specializes in Aesthetic Medicine

Veins in Pregnancy: Varicose veins often develop during pregnancy. The key causes are high Progesterone levels which cause the vein walls to dilate/relax, increased blood volume, and pressure on veins from the enlarging uterus. Graduated compression stockings can be very helpful in improving flow in the veins and thus reducing leg swelling and discomfort. Walking is also very useful as it improves venous flow.

Answered 5/3/2019

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Dr. Ted King answered

Three reasons: The first is hormones, as dr. Zimmet said. Although there are a few that come into play, the biggest culprit is progesterone. Reason #2 is that the amount of blood in your blood stream when you are pregnant increases by 50%. The third is the pressure on your veins that is created by your enlarging uterus. As others have said, graduated compression stockings help, especially if you have pain.

Answered 10/4/2016

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Dr. John Landi answered

Specializes in Phlebology

Increased Pressure.: During pregnancy with the growing uterus, there is increased pressure placed on the veins in the pelvis and lower abdomen.This increased pressure causes the venous pressure to increase which is then transmitted down through the veins resulting in the valves in the veins leaking (refluxing) leading to varicose veins. After delivery, the pressure is reduced. See a vein specialist for an evaluation.

Answered 12/21/2014

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Dr. Thomas Wright answered

Specializes in Phlebology

Hormones and fluid: When you are pregnant 25 % your body weight increase is from fluid.The reservoir for circulating fluid when you are upright are your leg veins. Progesterone, a principle pregnancy hormone, cause smooth muscle & veins to dilate. So in genetically susceptible ladies it is the perfect storm for varicose vein development. Dont fret, they will get better after delivery but they still might need treatment.

Answered 12/24/2022

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Dr. Joel Gotvald answered

Specializes in Vascular Surgery

Pregnancy & Veins: It is extremely common to develop varicose veins during pregnancy or the veins to get much worse & multiply during pregnancy. The reason is that the enlarged uterus puts increased pressure on the leg veins and pelvic veins. Since there is genetic vein valve weakness in those who develop varicose veins, valve damage is accelerated when the pressure in the leg veins goes up (like during pregnancy).

Answered 11/25/2013

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Varicose veins : The state of pregnancy causes a relaxation/malfunction of the valves in the veins in the legs which leads to a back-up of blood in the veins with increased pressure of the blood in the veins stretching the vein walls (varicosity). Wearing good support hose during the pregnancy may help with preventing the development of varicose veins long-term.

Answered 4/4/2016

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One should: Also consider the high female hormone of gestation that is known to dilate blood vessels veins included.

Answered 9/11/2013

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Compression: The uterus grows and compresses the vessels in the pelvis and that also contributes.

Answered 9/12/2013

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They will get worse: They will get better, but still be damaged. About 40% of women will need their venous disease treated at some point. Pregnancy accelerates this.

Answered 9/16/2013

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Get stockings: One way to help your veins during pregnancy is to ask your OB about venous compression stockings made specifically for pregnancy...They are no fun to put on or take off, but they can help your veins during this time.

Answered 6/10/2014

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Varicose veins pregn: during pregnancy its not unusual to develop varicose veins this is due to increasing size of the uterus with pregnancy also the head of the fetus may be putting pressure on one side or the other which can lead to valve breakage and larger varicose veins often spider veins may develop secondary to hormonal changes most of these will resolve several months after completion of the pregancy

Answered 3/13/2017

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