(Disclaimer: This article is for scientific purposes only. In order to protect the patient’s privacy, the relevant information in the following content has been processed) Abstract: Parents brought a 5-year-old girl to the clinic, stating that the child could not keep up with her studies after kindergarten, and that her comprehension was poor. Recalling that the child’s motor development was later than that of children of the same age, her speech was late, her reactions were slow, and the elderly members of the family did not take it seriously as they said it was a case of your language being late. The child was evaluated by Wechsler Intelligence Scale for Children (WISC), which indicated a mild intellectual disability. After 1 month of intellectual, language and motor rehabilitation training, the child’s language and social skills have improved, and the child is basically able to adapt to future learning and work in the long term. 【Basic information】 Female, 5 years old 【Type of disease】 Mild intellectual deficiency 【Hospital】 Shandong Third Hospital 【Time of consultation】 February 2019 【Treatment plan】 Intelligence training, speech training, sports rehabilitation training, etc. 【Treatment cycle】 Telephone follow-up after 1 month of treatment, outpatient follow-up for 3 years 【Treatment effect】 Stability of the condition, and the child’s language and social skills have been improved A. Initial consultation Initial meeting When the child was a child, his chubby little face was especially cute, but the parents were worried because they found that after the child went to kindergarten, he was slower than other children, didn’t like to communicate with others, couldn’t keep up with his studies, had poor comprehension, and recalled that when the child was a child, his motor development was later than that of other children of the same age, and his speech was late, and his reaction was also slow. The child was given a complete cranial examination, including cranial magnetic resonance, electroencephalogram, as well as micronutrient and thyroid function tests, which showed no obvious abnormality. With a score of 56 on the Wechsler Intelligence Scale for Children, the child was diagnosed with mild mental retardation. The child was evaluated at the outpatient clinic with an intelligence score of 56, and was considered to have mild mental retardation. Since the symptoms were relatively mild at the moment, and might gradually improve after growth and development into adolescence, regular evaluation was needed to provide positive guidance and training in intelligence, language, and locomotion, as well as psychological interventions. After the outpatient evaluation, intellectual training, language training, and motor rehabilitation training will be provided, and the child’s family will be instructed to arrange the training at home during the same period of time. At the same time, the child and his/her family will be provided with psychological counseling interventions, to avoid over-anxiety and to maintain a good state of mind. Parents can accompany their children to read and study at home and increase outdoor exercise. After 1 month of treatment and telephone follow-up, the child’s social activities were better than before, and the child’s language expression ability was improved, and the condition was stable. The prognosis of mild mental retardation is relatively good. As the child grows older and learns inside and outside the classroom, the symptoms will improve, and if professional training in intelligence, language and sports is added, the condition can usually be improved. After 1 month of treatment, the child’s social activities have improved and his language skills have improved. Parents are advised to follow up with the child for 3 years to assess the improvement of the child’s condition and to adjust the training mode appropriately, so that the child can be able to take care of himself/herself and work independently in his/her adulthood. After 1 month of outpatient training and home training, the child’s symptoms have been reduced and his social and language skills have been improved, which is a good start and the attending physician is very happy. Parents and children are advised to continue to persevere, because mild mental retardation can be improved to a certain extent through acquired training, children and parents should not give up lightly, and long-term perseverance can generally achieve the state of self-care, study and work alone. Family members should maintain a good attitude, actively encourage the child, to maintain patience, family care and encouragement for the child is crucial. V. Personal insights Children who speak late and respond slowly, if it is not very obvious, you can first observe, because each child is different, some children may indeed develop a little slower, but if it is significantly behind the children of the same age, it may be anomalous. Sometimes the elderly may say that it doesn’t matter if the child is late in speaking, it is a sign that the nobleman’s speech is late, but in fact, it is not, it may also be a sign of intellectual defects. Parents should pay active attention to their children’s growth and development and go to the hospital for regular checkups. If there is any disease, parents should keep a good attitude, face it positively and cooperate with the treatment. In addition, if parents are planning to have another child, it is recommended to screen the genes before giving birth to avoid the birth of children with mental retardation caused by genetic factors.