Varies: Blood clots can produce different presenting symptoms. If it is in the artery, it can cause dramatic pain and even turn the limb blue/black if it blocks important circulation to the rest of the arm. If in the vein, it will lead to swelling in the limb. If you have a bruise, it is likely a small bursted vessel. You may want to consider an insect bite too (spider?) and it may be infected.
Answered 4/9/2018
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4 doctors weighed in across 3 answers
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A doctor has provided 1 answer
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