The search for an effective means of helping children with anal incontinence has been facilitated by tissue-compatible material which has already been in use for a long time in proctology. Polyvinyl alcohol foam is characterized by its elasticity, malleability under the influence of liquids and its good tissue compatibility. We have had anal plugs manufactured in the shape of hourglasses. These are available in various sizes and can be adapted individually. We consider their application to be indicated in about one third of myelomeningocele children who either have partial or complete fecal incontinence. We have also tested the plugs in healthy children and experience is available in the meantime in eight children after operation on a high anal atresia and 15 children with spina bifida. The period of application is in childhood. Our experience so far is encouraging. The handling is described in detail.