Deep vein thrombosis — a blood clot, usually in the leg — is one of the risks doctors mention before surgery that can sound alarming without much explanation of what to actually do about it. The reassuring part: it's also one of the more preventable post-surgical complications, and prevention starts well before any symptoms would appear.

Why surgery raises the risk

Reduced mobility after surgery slows blood flow in the legs, and slower-moving blood is more prone to clotting. This is exactly why "just resting until you feel better" isn't the safest instinct after surgery — appropriate movement is part of what protects against this specific risk, not just something that happens once recovery is otherwise complete.

What actually reduces the risk

• Ankle pump exercises — simple, repeated flexing of the foot at the ankle, which activates the calf muscles that help pump blood back up the leg
• Active lower-limb exercises — movement of the legs even before you're up and walking
• Early mobilisation — getting up and moving as soon as it's medically appropriate after discharge
• A progressive walking programme — building up activity in a structured, guided way
• Compression therapy — when specifically prescribed by your treating doctor

What this doesn't replace

None of this — exercise, mobilisation, or supportive technology — replaces anticoagulant medication or compression therapy that your doctor has specifically prescribed. If you've been given blood thinners or a compression garment to wear, that instruction stands regardless of what else your rehabilitation programme includes. Prevention here is layered, not either/or.

The bigger picture

DVT prevention isn't a separate, isolated task bolted onto recovery — it's woven into the same early mobilisation and structured movement that supports every other part of post-surgical rehabilitation. Following your programme as guided is, in itself, meaningful DVT prevention.