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Can Blood Clots Cause Seizures?

Everyone has experienced blood clots–clotting is the process that stops bleeding from a cut or injury. If your blood does not clot properly, for instance, if you suffer from hemophilia, you could be in danger after even a minor injury. Clots under the skin cause bruising, again, a natural part of healing that typically doesn’t require vein treatment. Whether blood clots are good or bad depends upon where they occur, and if they break down properly to be reabsorbed by the body. We’ll discuss which type of blood clots are emergencies that can cause strokes, seizures, heart attacks and more.

Serious Deep Blood Clots vs. Superficial Clotting

Perhaps the worst place to suffer a blood clot can be inside a deep vein because clots here can be health threats if they stay in place, (becoming a DVT or deep vein thrombosis) or if they break away from their initial site and travel to the vital organs. If a clot travels to the brain, it can cause a stroke, and common after-effects of a stroke include seizures.

Clots are also part of the bulging and discoloration that you see if you have varicose veins. These visible blood clots are in superficial veins and are not normally dangerous. However, they can signal more serious veins disease and also cause unpleasant symptoms. Preserve your health by seeking treatment for any type of blood clot or bruise that won’t heal at your Tampa vein clinic. In the case of a deep vein clot (or thrombosis) with DVT symptoms, or signs of a stroke or seizure–seek emergency room treatment.

What is a Seizure? When Could Blood Clots Cause a Seizure?

A seizure is a kind of electrical power surge in the brain. This electrical brain signal overload brings about convulsions or sudden, uncontrolled muscle spasms (which are visible signs of a seizure). One of the most common causes of seizure is a stroke. A stroke is a case of interrupted blood supply to the brain–often arising from a deep blood clot that travels toward the brain and lodges there. So blood clots can cause seizures (disruption of electrical signals in the brain) indirectly.

Avoid Stroke and Seizure from Blood Clots or DVT



Watch for these signs of a dangerous, deep blood clot:

  • Pain in the leg, calf and/or foot.
  • The swollen area on the leg.
  • Red, tender and warm (to the touch) skin in the swollen area.
  • Sometimes there are no symptoms to warn you about a blood clot, leading to a stroke and/or seizure. For this reason, you should monitor your vein health by visiting your Tampa vein doctor. If you have signs of minor vein disease or blood clots, like varicose veins, your doctor will treat these issues with minimally invasive methods, and help you avoid more serious vein problems with lifestyle changes, if necessary.



Signs of the clot has traveled and caused a blockage in a lung artery (pulmonary embolism). This is a medical emergency–go to the emergency room immediately:

  • Trouble getting your breath
  • Chest pain during a deep breath or when coughing
  • Dizziness, feeling faint
  • Racing pulse
  • Coughing up blood



If you have varicose veins or concerns about blood clots, contact Dr. Chris Pittman and his team at Vein911 in Tampa, St. Petersburg, Largo or Palm Harbor. Call us at 855-396-9911 today.