A number of factors may increase your risk of Achilles tendinitis, including:

  • Your sex and age. Achilles tendinitis occurs most commonly in middle-aged men.
  • Physical problems. A naturally flat arch in your foot can put more strain on the Achilles tendon. Obesity and tight calf muscles also can increase tendon strain.
  • Training choices. Running in worn-out shoes can increase your risk of Achilles tendinitis. Tendon pain occurs more frequently in cold weather than in warm weather, and running on hilly terrain also can predispose you to Achilles injury.
  • Medical conditions. People who have diabetes or high blood pressure are at higher risk of developing Achilles tendinitis.
  • Medications. Certain types of antibiotics, called fluoroquinolones, have been associated with higher rates of Achilles tendinitis.
Oct. 02, 2012