Can Varicose Veins Cause Blood Clots?
Many people are unaware that varicose veins can sometimes lead to blood clots. According to medical explanations from Avis Vascular Centre, this happens because blood tends to pool or stagnate in diseased veins. When blood does not flow properly, it can thicken and coagulate, leading to clot formation.
Understanding the type of clot is extremely important, as not all blood clots carry the same level of risk.
Why Do Blood Clots Form in Varicose Veins?
In varicose veins, the valves that normally push blood upward toward the heart do not function properly. As a result:
- Blood collects in the legs
- Circulation slows down
- Stagnant blood has a higher chance of clotting
This pooled or “bad” blood environment increases the risk of clot formation.
Two Main Types of Blood Clots Associated with Varicose Veins
1. Superficial Thrombophlebitis
This type of clot forms in veins close to the skin.
- Causes sudden pain
- Redness and swelling along the vein
- Usually uncomfortable but not life-threatening
While it needs medical attention, it is generally manageable with proper treatment.
2. Deep Vein Thrombosis (DVT) – A Medical Emergency
Deep Vein Thrombosis occurs in the deep veins of the legs and is far more serious.
- May cause swelling, pain, or tightness
- Sometimes occurs with very mild symptoms
- Classified as a medical emergency
The danger of DVT lies in the fact that deep veins carry nearly 90% of the blood from the legs back to the heart. A clot here can block blood flow or break off and travel to the lungs, leading to life-threatening complications.
Why DVT Requires Immediate Treatment
If DVT is not treated promptly:
- Blood circulation from the legs is compromised
- The clot can migrate to vital organs
- Risk of pulmonary embolism increases
Early diagnosis and urgent treatment can be life-saving.
When Should You Be Concerned?
Seek medical attention immediately if you notice:
- Sudden leg swelling
- Unexplained leg pain
- Redness or warmth in the leg
- Worsening symptoms in someone with known varicose veins