Hundreds of women who suffered medical complications as a result of surgical mesh implants are bringing a large-scale group action, co-ordinated by Wedlake Bell. Similar actions against manufacturer Johnson & Johnson have taken place in Scotland, the US and Australia. The implants, made of polypropylene, are used to treat pelvic organ prolapse, and are extremely difficult to remove. Complications complained of include chronic and life-altering pain, often preventing everyday activities such as walking and running. NHS Scotland suspended their use in 2014. Wedlake Bell is examining allegations that Johnson & Johnson failed properly to test the devices and played down the risk and high failure rate.