A blood clot is a mass of blood that changes from a liquid to a gel, effectively forming a plug that can stop bleeding. This natural process, known as coagulation, is critical for preventing excessive blood loss when you sustain an injury. Blood clots can occur in various areas of the body, typically at the site of a wound, but they can also form within blood vessels without an obvious injury, which may lead to serious health complications.
While blood clots are essential for healing, they can pose significant health risks if they form inappropriately. For example, a deep vein thrombosis (DVT) occurs when a clot forms in a deep vein, usually in the legs, and can travel to the lungs, causing a life-threatening condition called a pulmonary embolism. Risk factors for blood clots include prolonged immobility, certain medical conditions, and the use of specific medications, among others. It’s important to recognize the symptoms of abnormal clotting, such as swelling, pain, and redness in the affected area, and seek medical attention if they occur.