Causes of a Contusion
It is quite common to see a contusion on the skin after a bump on a chair, doorframe, or any hard surface. Other possible causes include cuts, sports injuries, burns, vehicle accidents, muscle strain, ankle sprain, head injury, concussions, wearing tight clothes, injections, or blows. In most cases, these contusions are part of the natural healing process and tend to subside in a few days or weeks. Some medications and supplements may also cause contusions as side effects. This is particularly the case with steroids, blood thinners, and fish oil supplements. Contusions are also common in people with certain bleeding disorders, such as factor II deficiency, factor V deficiency, factor VII deficiency, factor X deficiency, hemophilia A, Von Willebrand disease, and Christmas disease.
Contusions are more prevalent in older adults. This is because the skin gets thinner when you age, making the blood vessels under the skin more susceptible to breaking. Also, women tend to have contusions more than men. If you notice unexplained bruising in children or infants, make sure to visit a doctor as it may indicate a serious disease. [3]
