DVT (deep vein thrombosis) – NHS

DVT (deep vein thrombosis) is a blood clot in a vein, usually in the leg. DVT can be dangerous. Get medical help as soon as possible if you think you have DVT. Symptoms of DVT (deep vein thrombosis) Symptoms of DVT (deep vein thrombosis) in the leg are: throbbing pain in 1 leg (rarely both legs), usually in the calf or thigh, when walking or …

https://www.nhs.uk/conditions/deep-vein-thrombosis-dvt/