While doctors acknowledge that Crocs have therapeutic value for wearers, they also find that the loose-fitting footwear poses some unexpected dangers not related to their ergonomic properties. The Independent newspaper reports instances of wearers getting their feet caught in escalators, slipping and falling when the footwear gets wet and spreading infections in hospitals. In addition, some feel Crocs do not provide enough support for the feet.
The Independent newspaper also includes reports that hospital personnel wearing Crocs generate static electricity that has the potential to knock out vital equipment. Despite the reports, Crocs have certification from the U.S. Ergonomics Council and the American Podiatric Medical Association. According to Crocs co-founder and vice president Lyndon V. Hanson, III, the "shoes were designed specifically to eliminate plantar pain and achy feet." These shoes also supposedly offer some arch support and cushioning. In addition, the holes allow air in and keep the feet from sweating, and the anti-microbial properties may help prevent infections in the feet, contradicting the reports devoted to chronicling the dangers of Crocs. Furthermore, Crocs also have value for people with diabetes who already have reduced circulation in their feet and are at a higher risk for open sores and wound infection.