10 everyday risks that slowly raise your chances of blood clots

10 everyday risks that slowly raise your chances of blood clots

By Namita S Kalla | July 20, 2025 |  Image: Canva

Ageing slows circulation

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As we grow older, our blood flow tends to slow down. Our veins also become weaker, which makes it easier for hidden clots to form, especially in the legs

Family history matters

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If someone in your family has had deep vein thrombosis (DVT) or a pulmonary embolism, your chances go up too. Genetics do play a strong hand in this

Cancer changes blood chemistry

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Some cancers, and even their treatments, can make the blood clot more easily. This raises the risk of developing DVT, a dangerous type of clot in deep veins

Troubled veins signal warning

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Conditions like varicose veins damage the valves inside your veins. When blood flow slows down in such areas, clots are more likely to form and go unnoticed

Smoking thickens your blood

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Tobacco doesn’t just harm your lungs, it thickens the blood and damages vessel linings. With less oxygen and sticky blood, your chances of clots silently go up

Hormones increase clot risk

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Birth control pills, hormone therapy, and pregnancy can raise the level of clotting agents in your body, especially if you already have other risk factors in play

Pregnancy presses on veins

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As the uterus grows, it puts pressure on your leg veins. This slows down circulation, especially in late pregnancy, and can lead to swelling and clot risks

Excess weight, extra strain

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Carrying extra weight strains your veins, particularly those in your legs and pelvis. The more pressure there is, the harder it is for valves to do their job properly

Inherited clotting disorders

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Some people are born with conditions that make their blood clot easily. These genetic traits don’t always show up early, but can quietly increase risk over time

Injuries and surgeries reduce flow

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Breaking a leg or undergoing joint surgery (like hip or knee replacements) can slow down blood flow during recovery. Add long bed rest to the mix, and clot risk goes up fast

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