It’s no secret that blood clots can be dangerous. They can block blood flow and cause heart attacks and strokes. But how do you know when you should be worried about them? Here are seven clues you can’t afford to overlook.

1. Swelling

One of the most common symptoms of a blood clot is swelling. This can happen in any part of the body but is most common in the legs. If you notice that one of your legs is swollen and you can’t explain why, it’s time to see a doctor.

2. Pain

Pain is another common symptom of a blood clot. This can feel like cramping or aching in the affected area. If you notice pain in your leg or arm that is not due to an injury or exercise, it could be a sign of a blood clot.

3. Discoloration

If you notice that your skin is turning red or blue in the affected area, this could be a sign of a blood clot. This is usually a sign that blood flow is being restricted and needs to be addressed right away.

4. Warmth

Another clue that you may have a blood clot is warmth in the affected area. This is usually due to an increase in blood flow to the area and can be a warning sign that a clot is forming.

5. Shortness of breath

Blood clots can also form in the lungs, a condition known as pulmonary embolism. One of the telltale signs of this is shortness of breath.

If you are having difficulty breathing for no apparent reason, it’s important to seek medical attention immediately.

6. Chest pain

In addition to shortness of breath, chest pain can also be a sign of a pulmonary embolism. This should not be taken lightly and requires immediate attention from a medical professional.

7. Dizziness

Blood clots can also affect the brain, causing a stroke. If you experience sudden dizziness or difficulty with balance, it could be a sign that a blood clot has formed in your brain.

While these symptoms can be scary, it’s important to remember that not all blood clots are life-threatening. However, it’s always better to err on the side of caution and seek medical attention if you notice any of these symptoms.