Intellectual disability-feeding difficulties-developmental delay-microcephaly syndrome is a rare, genetic, syndromic intellectual disability disorder characterized by borderline to severe intellectual disability, global development delay, feeding difficulties, microcephaly, short stature and mild facial dysmorphism, including thick eyebrows, long eyelashes, prominent incisors and/or thin upper lip. Other associated features may include hypermetropia with or without esotropia, behavioral anomallies (e.g. autistic behavior, sleeping disturbances), urogenital abnormalities (e.g. crytorchidism, inguinal hernia), single palmar crease, fifth-finger clinodactyly and cardiac defects (e.g. ASD, PDA).