Psoriasis: The most common skin disorder that also affects the joints, including the knees, is psoriasis. Although certainly not all patients with psoriasis will develop joint problems, psoriatic arthritis may cause knee pain and swelling. ...Read more.
Definition of accident. 1  1a : an unforeseen and unplanned event or circumstance Their meeting was an accident.b : lack of intention or necessity : chance They met by accident rather than by design.
Accidents, also referred to as unintentional injuries, are at present the 4th leading cause of death in the U.S. and the leading cause of death for those aged1-44. Possible prevention measures. By their very natures, accidents are unintentional, but there are many ways to reduce the risk of accidental death and injury.