Complications after surgery of any kind are a fact of life. Some are minor, others are more drastic. Studies following patients with Achilles tendon ruptures report the following most common complications to watch out for: nerve injury, rerupture of the healing Achilles tendon, skin infection, pain at the suture site, scar adhesion, and pneumonia. Deep wound infection is also a possibility but rather rare.
Most of the complications are temporary. Once patients recover from their early post-operative problems, their healing and recovery is uneventful. Rerupture is really the most difficult complication. It can mean another surgery and a delay in completing rehab.
Reruptures increase the chances of preventing sports athletes from returning to play two-fold — in other words, it doubles the risk that they will have to quit sports. Some players will end up changing the sport they are involved in, a decision that could be potentially very disappointing for some. Others bide their time and are able to recover fully.