NEW DELHI, India – As India experiences a noticeable resurgence in COVID-19 cases driven by new sub-variants, medical experts are reiterating warnings about the persistent and often overlooked risk of deep vein thrombosis (DVT) and other thrombotic complications associated with the virus. While the current wave is largely characterized by milder symptoms for vaccinated individuals, the underlying threat of blood clots remains a significant concern, particularly for those with severe infections or pre-existing conditions.

Recent data, including reports from early 2025, continues to reinforce the established link between SARS-CoV-2 infection and an increased propensity for blood clot formation. COVID-19 induces a prothrombotic state in the body, leading to a higher incidence of venous thromboembolism (VTE), which includes DVT (clots in deep veins, usually in the legs) and pulmonary embolism (clots that travel to the lungs). The risk is notably higher in hospitalized patients, those requiring intensive care, and individuals with underlying health vulnerabilities.

"Even as we navigate COVID-19 as an endemic disease, it's crucial not to underestimate its potential long-term effects on various body systems, including the circulatory system," stated a leading pulmonologist in Chennai. "Patients, especially those with severe or prolonged COVID-19, should remain vigilant for symptoms like swelling, pain, redness, or warmth in the legs. Early detection of DVT is vital to prevent life-threatening complications such as pulmonary embolism."

Public health advisories continue to emphasize vaccination, adherence to hygiene protocols, and seeking medical attention for worsening symptoms. Healthcare providers are urged to maintain a high index of suspicion for thrombotic events in COVID-19 patients, both during the acute phase and in the post-recovery period, as studies indicate elevated risks can persist for several months after infection. This renewed focus aims to equip both the public and medical professionals with the awareness needed to mitigate this serious, yet manageable, complication.