<s>[INST] i fell down steps and my leg bent underneath me and the front part of my calf hit concrete steps and formed a knot.  i have been putting ice on it from wednesday thru saturday and bruise has spread about 9 inches by 6 inches. are there ways to tell of signs of a blood clot.  i have no pain walking on leg or anything like that. [/INST] Signs and symptoms of excessive blood clotting depend on where the clots form. For example, symptoms of a blood clot in the heart or lungs may include chest pain, shortness of breath, and upper body discomfort in the arms, back, neck, or jaw. These symptoms may suggest a heart attack or pulmonary embolism (PE). Signs and symptoms of a blood clot in the deep veins of the leg may include pain, redness, warmth, and swelling in the lower leg. These signs and symptoms may suggest deep vein thrombosis (DVT). Signs and symptoms of a blood clot in the brain may include headaches, speech changes, paralysis (an inability to move), dizziness, and trouble speaking or understanding speech. These signs and symptoms may suggest a stroke. Regards Chat Doctor.  </s>