If you find yourself with a swollen leg that won’t go away, be aware that you may have a blood clot. According to doctors, the blood clot can be life-threatening if left untreated and spreads to other parts of the body or even the heart. 62-year-old Mr. Lei is thankful that he was able to control the blood clot as soon as possible and prevent the condition from worsening. Mr. Lei said that six months ago, his left foot began to swell, but it did not hurt, and it has not subsided since. Lei has high blood pressure, so he was very worried about the condition and promptly told his doctor about his symptoms. Afterwards, Lei Ming was examined and found to be suffering from deep vein thrombosis of the lower extremities, and the doctor rushed to prescribe him medication for the treatment. The so-called thrombosis is simply because the blood is clotted, and if not dealt with in time, the consequences will be very serious when the blood vessel is blocked. Thrombosis is a multifactorial process involving many genetic and environmental factors that interact with each other. The specific cause is not clear, but doctors warn that it is best to be vigilant for patients who meet the following conditions In people over 40 years old, the aging of the blood vessel wall becomes increasingly serious with age. The rough and uneven inner lining of aging blood vessels easily leads to platelets attaching to the rough inner lining surface, releasing clotting substances and subsequently causing red blood cells to gather and form thrombi. Women in late pregnancy and maternity in patients with malignant tumors. In China, maternity is even bedridden while sitting on the moon, so the activity is reduced and the blood circulation slows down, which constitutes a factor in the formation of thrombus. In addition, in order to breastfeed after childbirth, a large amount of fatty food is consumed, resulting in an increase in blood viscosity, which is also a cause. Lower limb fractures in patients with lower limb fractures are caused by trauma. Even the hard bones are damaged, then the soft tissues around the fracture, including muscles and blood vessels, must also be traumatized, among which the damage to the veins will cause the destruction of the venous lining, which is more likely to lead to thrombosis. This, combined with the need for bed rest after fracture, will cause the small thrombus that has formed to gradually expand and then block the deep veins of the lower extremities, causing edema and swelling. After major surgery, there are many data showing that lower limb deep vein thrombosis is also likely to occur after lower limb bone and joint surgery, which can be as high as 50% or more. People who take contraceptive drugs for a long time can increase the coagulation factors in the blood after taking oral contraceptive drugs, which can reduce the activity of antithrombin, thus making it easy for thrombosis to occur. How to prevent and control lower limb deep vein thrombosis First of all, anticoagulation treatment should be done, and thrombolytic drugs should be taken to dissolve the clot, so as to avoid the spread of thrombus in other segments of blood vessels. Secondly, wear medical elastic stockings to promote blood return to the veins of lower limbs. Finally, exercise prevention treatment, more walking and more exercise, reduce the intake of high blood fat and other food. Sitting in front of the computer for a long time beware of “computer thrombosis” Xiao Song is a computer company network engineer, sitting in front of the computer every day, often a dozen hours without getting up, sometimes the company’s business is busy often sitting in front of the computer work until after midnight. One day Xiao Song suddenly felt chest tightness and chest pain, and rushed to the hospital, where it was found that there were pulmonary vascular embolism foci in both lungs and thrombosis in the veins of the lower limbs. The doctor initially diagnosed pulmonary embolism, also known as “computer thrombosis”. This “computer thrombosis” is actually the medical venous thrombosis. There are two kinds of blood vessels in the human body, one is to transport blood from the heart to all parts of the body, called arteries, and the other is to send blood from all parts of the body back to the heart, called veins. The blood in the veins circulates back and forth, and the long flow ensures the vitality of human life. When the blood does not flow anymore, it clots up and becomes a thrombus. Computer operators are sedentary, lack of exercise, plus the lower extremities are far from the heart, it is easy to make the blood in the legs flow back to the heart poorly and produce clotting, becoming thrombosis. “Computer thrombosis” is similar to the so-called “economy class syndrome” of long-distance air travel. Early symptoms are spontaneous leg and stomach pain, swelling, local fever, walking pain, and even the inability to walk. If the disease is not treated in time, it can lead to venous occlusion and destruction of venous valves in the lower extremities, and deep vein embolism can cause clots to gather in the lungs and induce pulmonary embolism. Typical symptoms of pulmonary embolism are chest pain, chest tightness, and hemoptysis. There are also symptoms such as sudden dizziness, fall, panic, sweating, and some may have pain and swelling of one side of the limb. Severe cases can be life-threatening. Long-term sedentary work in front of the computer or Internet games for 1 to 2 hours, you should stand up and exercise; drink more water, do more calf and foot exercises, such as consciously stretching the lower limbs, doing squats and other actions to speed up the blood flow in the lower limbs, so that you can effectively prevent this disease.