Sudden Redness and Swelling in One Leg: Causes and What to Know
Sudden leg swelling can be alarming, and in some cases, it signals a serious medical issue. One of the most dangerous causes is deep vein thrombosis (DVT), which occurs when a blood clot forms in a deep vein—often in the calf or thigh. This can lead to swelling, redness, warmth, and pain. The greatest risk is…