Common ways to break a wrist include falls, sports injuries and vehicle accidents, according to Mayo Clinic. Wrists often break when a person holds out an outstretched hand in an attempt to break a fall, and any direct blows place a person at risk for a broken wrist.
Sports injuries in contact sports often result in wrist fractures, as reported by Mayo Clinic. Crushing is a common cause. Other sports that involve falling, such as jumping on a trampoline or rugby, can produce the same results as an accidental fall--a direct blow that fractures the wrist or hand.
Vehicle accidents can cause more serious wrist fractures, as stated by Mayo Clinic. High-velocity injuries common in car wrecks can result in multiple breaks in the wrists, and these injuries are often serious enough to require surgery.
Some health conditions make it more likely that someone may suffer a broken wrist, according to Mayo Clinic. Diseases that weaken bones, such as osteoporosis, can increase the risk of wrist fracture, as can eating a diet deficient in Vitamin D and calcium. Smokers have a greater risk of breaking a wrist because smoking cigarettes negatively affects calcium absorption, which weakens bones and makes them more susceptible to injury.