How to Spot and Respond to Blood Clots

Blood clots are a serious health concern that can lead to severe complications. Recognizing the warning signs and understanding when to seek help can significantly improve outcomes. Here’s a guide to spotting the signs of a blood clot and knowing what steps to take next.

What Are Blood Clots?

Blood clots, or thrombi, are semi-solid clumps of blood that form within veins or arteries. Although blood clotting helps stop bleeding when injured, abnormal clots can block blood flow and lead to conditions like deep vein thrombosis (DVT) or pulmonary embolism. Recognizing the signs is essential for timely diagnosis and treatment.

Common Signs of a Blood Clot

Identifying blood clots early can be life-saving. Here are seven common signs of a blood clot:

Swelling in the Affected Area

Sudden, unexplained swelling in a limb, especially the legs, may indicate DVT. Swelling typically affects one side and is due to blood flow obstruction, causing fluid buildup in the tissues.

Pain or Tenderness

Pain or tenderness, especially when touching or pressing the affected area, is a common symptom. This discomfort, often in the calf or thigh, may feel like a muscle cramp but worsens over time or with movement.

Red or Discolored Skin

A blood clot may cause skin discoloration—redness or a bluish-purple hue—due to disrupted blood flow. The area may also feel warm to the touch.

Warmth in the Affected Area