Blood Clot Prevention (DVT/PE Risk)
Cancer is a major risk factor for blood clots (venous thromboembolism — DVT and pulmonary embolism). Some treatments (certain chemotherapy, hormone therapy, bevacizumab, thalidomide/lenalidomide, erythropoietin, indwelling catheters) further increase risk. Blood clots are a leading cause of cancer-related mortality. Most prevention is medical, but lifestyle measures significantly contribute.
Herbs & Supplements — Safety Information
Herbal information is for educational purposes. Many herbs interact with chemotherapy and other medications — consult your oncologist before use.
When to Seek Medical Help Immediately
- •Calf pain, swelling, redness, or warmth — DVT symptoms (medical emergency)
- •Sudden breathlessness, chest pain, or coughing blood — pulmonary embolism (medical emergency — call emergency services)
- •Arm swelling at PICC or port line site
- •Sudden severe headache or one-sided weakness (cerebral thrombosis)
2 Natural Remedies
Regular Movement & Anti-Clot Exercises
Best for: DVT prevention during hospitalisation, after surgery, during long journeys, bed rest periods
Immobility is one of the main modifiable DVT risk factors. The calf muscles act as a venous pump — muscle contraction during walking pushes blood back toward the heart. Even during hospitalisation or prolonged sitting, simple ankle pumping exercises significantly reduce clot formation risk.
🧪 How to Prepare
While sitting or lying: ankle pumping (flex and point feet repeatedly, 30 reps every hour), ankle circles, calf raises. If mobile: short walks every 1–2 hours during the day, avoid sitting for extended periods. During long car/plane journeys: compression stockings + walk every hour. Post-surgery: gentle leg exercises as soon as cleared by surgical team — movement should start within 24 hours if possible.
⏰ When to Take
Every 1–2 hours during waking hours, especially during periods of reduced mobility.
Compression Stockings (Graduated)
Best for: DVT prevention in all high-risk cancer patients, post-surgery, prolonged immobility
Graduated compression stockings (15–20 mmHg or 20–30 mmHg) improve venous return from lower limbs, directly reducing DVT risk by preventing blood from pooling in leg veins. Multiple trials confirm their efficacy in surgical and hospitalised cancer patients. They are often prescribed post-operatively and should be used throughout prolonged bed rest.
🧪 How to Prepare
Knee-length or thigh-high graduated compression stockings, properly fitted (incorrect sizing reduces efficacy and can be harmful). Put on before getting out of bed in the morning. Remove at night. Ensure stockings are in good repair — replace when elasticity is lost.
⏰ When to Take
All day, every day during periods of high DVT risk (post-surgery, hospitalisation, immobility). May be prescribed long-term after DVT treatment.
Evidence Level Guide