Deep vein thrombosis: Here's why you should worry about blood clots if you sit for too long

Causes of deep vein thrombosis: Prolonged sitting during desk jobs can impair blood circulation in the legs. It’s important to take regular breaks, stretch, and stay active to minimise this risk (Image: Canva)

Staying active and following healthy habits like eating a balanced diet and exercising regularly are essential for maintaining good health. However, if your daily routine involves long hours of sitting at a desk or lounging on a couch, it could lead to serious health issues. One of the major risks associated with a sedentary lifestyle is Deep Vein Thrombosis (DVT), a condition where blood clots form in the deep veins of the legs, potentially leading to life-threatening complications.

Deep Vein Thrombosis is linked to prolonged periods of inactivity, such as sitting at a desk for hours without moving, says Dr Tapish Sahu, Head of Vascular and Endovascular Surgery at Manipal Hospital Dwarka, New Delhi. “When you sit for too long, blood flow in your legs slows down, which can cause clots to form. These clots may cause swelling, pain, or redness in the leg. In severe cases, they can travel to the lungs, leading to a potentially life-threatening condition called pulmonary embolism,” he adds.

Also read | Deep Vein Thrombosis (DVT): Causes, symptoms and how to prevent this silent threat

Desk jobs, warns Dr Sahu, when combined with poor posture or lack of movement, increases the risk of DVT, especially in those with other risk factors like obesity, smoking, or a history of blood clots. “Prolonged sitting during desk jobs can impair blood circulation in the legs. It’s important to take regular breaks, stretch, and stay active to minimise this risk,” he says.

Dr Sahu suggests the following strategies that will protect you \from the dangers of a sedentary lifestyle:

Breaks are important to keep the blood flowing: Sitting for extended periods can slow blood circulation in your legs. Make it a habit to stand up, stretch, or take a short walk every 30–60 minutes. Include regular exercise in your routine, like walking, jogging, or yoga, to further improve circulation and reduce the risk of clots.

Stretch your legs, use footrest: While sitting, move your legs frequently to prevent blood from pooling. Flex your ankles, rotate your feet, or gently stretch your legs under your desk. Adding a footrest or small stool can help reduce pressure on your legs and promote better circulation.

Hydration is the key: Dehydration can make your blood thicker and more prone to clotting. Drink plenty of water during the day to stay hydrated. Limit alcohol and caffeine, as they can dehydrate your body. If you smoke, quitting can further reduce your risk of DVT and improve your overall vascular health.

Also read | Varicose veins causes, symptoms, precautions: Leg exercises can prevent formation of dilated veins

Watch your weight: Excess weight puts extra pressure on your veins, increasing the risk of blood clots. Follow a balanced diet and stay active to maintain a healthy weight. At work, use an ergonomic chair to minimise vein compression and encourage proper blood flow.

Positive lifestyle: Preventing DVT involves proactive lifestyle changes, but if symptoms like swelling, pain, or discolouration appear in your legs, consult a doctor immediately. “Early intervention is key to managing DVT,” explains Dr Sahu, “In mild cases, medications and compression stockings may be sufficient, but severe cases might require advanced procedures like thrombosuction or thrombolysis to restore proper blood flow," he adds.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.