Interestingly, nine out of 10 cases in the UK are due to alcohol, obesity and hepatitis A – all preventable risk factors.

The new findings suggest clinicians should be aware of the risk of venous thrombosis when treating patients in hospital, as blood clots can occur during surgery.

The CDC adds: “The most serious complication […] happens when a part of the clot breaks off and travels through the bloodstream to the lungs, causing a blockage called pulmonary embolism.

“If the clot is small, people usually recover from pulmonary embolism with appropriate treatment, explains the body.

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