Risk Factors and Prevention
While some clots are spontaneous, most are the result of specific risk factors. Prolonged immobility—such as long-haul flights or recovery from surgery—is a leading cause. In 2026, the medical community also emphasizes the roles of dehydration, smoking, and certain hormonal medications in increasing blood viscosity.
Risk Factor Category Specific Examples Prevention Strategy
Immobility Long flights, hospital stays, desk jobs Hourly movement, compression socks
Biological Pregnancy, advanced age, genetics Regular screenings, hydration
Lifestyle Smoking, obesity, dehydration Smoking cessation, 2.5L+ water daily
Medical Recent surgery, cancer, COVID-19 history Prophylactic anticoagulants (if prescribed)
