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.
What is causes and the prevention of car accidents? Mostly accidents are caused by people not paying attention to what  they are doing, using mobile phones or falling asleep at the wheel  for example. Other accidents are the â¦result of human error  misjudging road conditions or traffic behaviour etc.