The study of the oral and written language delayed at the school makes possible the early detection of scholar, behavioral and psychiatric disorders. These difficulties could affect to the personal and professional development.

To confirm the relationship between language oral and written delayed for the early detection of developmental disorders.

A sample of 350 subjects among 5 and 23 years of age is analyzed with oral and/or written language difficulties. It is studied diagnosis, gender, age, reason for treatment, grade and submitter.

The specific learning disabilities (SLD) request a 62.3% of the treatment among 7–10 years. The percentages of SLD are: reading comprehension difficulties (17.4%), dysorthography (13.4%), reading fluency and reading comprehension difficulties (12.9%), reading fluency (11.7%) and, dysorthography and reading fluency (6.9%). There exist percentage differences between repeaters (39.4%) and no repeaters (22.9%) students with DALE. The oral/written language provides the early detection of Intellectual disabilities (8.6% of the simple). The relation between the reason for treatment and diagnosis do not coincide: the consults was 3.7% for oral language delay, 2.6% for reading comprehension difficulties, 1.4% for dysorthography and 0.9% for reading fluency. The school demand more treatment (50.9%), next to medical centers (22.3%) and family initiative (15.7%).

The oral/written language delayed – especially the reading comprehension difficulties – are a good early detection for the developmental disorders (intellectual disabilities minor, SLD and TDAH at the primary stage). There is more percentage of boys than girls (2:1) with language delayed, except at Intellectual disabilities, because there is an identical percentage (4.3%).