The National Health Service (NHS) recommends contacting 111 if you observe a concerning symptom affecting only one leg, as it could be a sign of a blood clot. Blood clots, if not naturally dissolved, can lead to serious complications like strokes and heart attacks by obstructing blood flow in the body. Typically, blood clots originate in a vein in the arm or leg, a condition known as deep vein thrombosis (DVT). Throbbing pain in one leg, especially while walking or standing, is a common indicator of DVT, which rarely affects both legs simultaneously.
In addition to leg symptoms, DVT can manifest in the arm or abdomen. If DVT is suspected, urgent medical attention is advised to prevent severe consequences. The NHS warns about the dangers of blood clots traveling to vital organs such as the brain or lungs, emphasizing immediate action if symptoms like pain, swelling, breathlessness, or chest pain occur. Pulmonary embolism, a life-threatening condition, can result from blood clots traveling to the lungs.
It is crucial not to drive oneself to the emergency room if experiencing these symptoms; instead, call 999 for an ambulance. Various factors increase the risk of blood clot development, including age over 60, obesity, smoking, previous DVT history, contraceptive pill use, cancer, or heart failure. Certain situations like recent hospitalization, limited mobility post-surgery, prolonged travel, pregnancy, or dehydration can also elevate DVT risk.
Although sometimes DVT occurs without an obvious cause, preventive measures can reduce the likelihood of blood clot formation. Treatment for diagnosed blood clots may involve anticoagulant medications like warfarin or surgical interventions to prevent or remove clots.