Developmental Co-ordination Disorder DCD or Dyspraxia is a neurological difference which affects physical co-ordination. Children can appear clumsy and have difficulty performing tasks other children their age can do. Early developmental milestones may have been delayed, and although there are early signs, children are often not diagnosed until they start school. Dyspraxia may also affect organisational skills, attention, memory or speech and language, it varies depending on the individual.