After she experienced bladder problems, Mechel Keel of Owosso, Mich., had flexible mesh implanted. But the mesh hardened inside her, causing pain and infections. In this 2015 photo, she is awaiting surgery to remove parts of the failed mesh.

After she experienced bladder problems, Mechel Keel of Owosso, Mich., had flexible mesh implanted. But the mesh hardened inside her, causing pain and infections. In this 2015 photo, she is awaiting surgery to remove parts of the failed mesh.