A burning leg, a swollen calf, fatigue that suddenly hits you for no reason… We often attribute these signs to a bad day, but they can mask a much more serious threat. Deep vein thrombosis (DVT) progresses silently, and its real danger – pulmonary embolism – can catch anyone off guard. Yet, by knowing the right warning signs and adopting a few simple steps, you can stay one step ahead. Here’s what you absolutely need to know.
You may have already experienced this strange sensation: one calf slightly more swollen than the other, persistent redness, or localized heat for no apparent reason. We tend to dismiss them, but these small signs deserve our full attention. Blood clots, also called deep vein thrombosis (DVT), often develop silently. And the worst part is that when they travel to the lungs, they can cause a pulmonary embolism, an absolute emergency. The good news? By learning to recognize them and adopting the right reflexes, we can act in time. Let’s take a closer look.
The clues you absolutely must not ignore
A sudden swelling on one side
Have you noticed that your calf has suddenly swollen, even though you haven’t done anything strenuous? This classic sign of DVT should not be taken lightly, especially if it persists despite elevating the leg or applying a cool compress.
A redness that sets in
A red spot that’s warm to the touch and slightly painful? If it doesn’t disappear and is accompanied by other unusual sensations, it’s wise to consult a doctor. This is especially true if you’ve recently experienced a shock or undergone surgery.
A warmth that seems to come from within
If part of your leg gives off unusual heat, even to the touch, this may indicate that blood is having difficulty circulating normally.
Pain or sensitivity upon contact
Is there a specific spot that hurts, like a muscle aches that won’t go away, or a discomfort that makes you limp? This abnormal pain could indicate the presence of a blood clot.
A heart that races for no reason
Is your heart racing even though you’re sitting comfortably? This is sometimes a sign that your body is fighting a clot that is disrupting blood circulation.
Unexplained fever and chills
A slight feeling of heat, a mild fever that comes on for no apparent reason? This could be your body’s reaction to a moving clot.
Veins that become very visible
Are your veins more visible and swollen, especially if you already have varicose veins? This is an indicator that should not be ignored.
Overwhelming fatigue
Unexplained exhaustion, even after a good night’s sleep? This could stem from the energy your body is using to fight a blood clot.
Dizziness or sudden discomfort
Unexplained dizziness, a spinning sensation… These symptoms can precede a pulmonary embolism and require urgent medical attention.
And sometimes… nothing at all
The worst part is when there are no signs at all. Nothing. In nearly half of all cases, DVT goes completely unnoticed until the clot causes a serious complication. That’s the real danger.
The real culprit: blood that’s too thick
This subtle phenomenon, known as hyperviscosity of the blood, makes the blood denser and stickier. As a result, it circulates more slowly, increases the risk of blood clots, and puts strain on the heart. Several studies show that this viscosity is as dangerous as cholesterol for our cardiovascular health. And yet, it’s rarely discussed…
Simple habits to reduce risks
Good news: it’s possible to take action! Here are a few easy habits to incorporate into your daily routine:
Walk every day, even 30 minutes is enough.
Stretch during long journeys, especially by plane or car.
Avoid tight clothing, particularly around your legs.
Elevate your legs regularly, even if only for a few minutes.
Reduce your salt intake and limit processed foods.
Wear compression stockings if you are at risk or on medical advice.
Consume omega-3 fatty acids, found in oily fish, nuts, or as a supplement.
Discuss your contraception with your doctor, especially if you have other risk factors.
Sometimes a simple gesture is all it takes to make all the difference.
