Often children (and adults) with dysgraphia will become extremely frustrated with the task of writing specially on plain paper (and spelling); younger children may cry, pout, or refuse to complete written assignments. This frustration can cause the student a great deal of stress and can lead to stress-related illnesses. This can be a result of any symptom of dysgraphia. Causes
The underlying causes of the disorder are not fully understood  But dysgraphia is as well known to be a biologically based disorder with genetic and brain bases. More specifically, it is a working memory problem caused by specific neurodevelopmental dysfunction. In dysgraphia, individuals fail to develop normal connections among different brain regions needed for writing. People with dysgraphia have difficulty in automatically remembering and mastering the sequence of motor movements required to write letters or numbers. Dysgraphia is also in part due to underlying problems in orthographic coding, the orthographic loop, and graphmotor output (the movements that result in writing) by ones hands, fingers and executive functions involved in letter writing. The orthographic loop is when written words are stored in the minds eye, connected through sequential finger movement for motor output through the hand with feedback from the eye.Family history of specific learning disabilities may play a role. Children with developmental dysphasia, developmental dysgraphia and developmental dyslexia may be more likely to have family members with one of these conditions. Genetic studies suggest that verbal executive function tasks, orthographic skills, and spelling ability may have a genetic basis.
Studies have shown that higher education students with developmental dysgraphia still experience significant difficulty with hand writing, fine motor skills and motor-related daily functions when compared to their peers without neurodevelopmental disorders. Classification
Dysgraphia is nearly always accompanied by other learning disabilities and/or neurodevelopmental disorders such as dyslexia, attention deficit disorder or oral and written language learning disability (OWL LD)  and this can impact the type of dysgraphia a person has. Tourette syndrome, ASD and dyspraxia are also common diagnoses among dysgraphic individuals. Developmental dysgraphia was originally described as being a disorder that occurs solely in dyslexic individuals. Dysgraphia was not studied as a separate entity until mid-20th century when researchers discovered there were different types that occur without dyslexia. Dyslexics and dysgraphics experience similar synchronization difficulties and issues with spelling. However, dyslexia does not seem to impair physical writing ability or dramatically impact fine motor skills and dysgraphia does not impact reading comprehension. Methods for evaluating, managing and remedying dysgraphia are still evolving, but there are three principal subtypes of dysgraphia that are recognized. There is little information available about different types of dysgraphia and there are likely more subtypes than the ones listed below. Some people may have a combination of two or more of these, and individual symptoms may vary in presentation from what is described here. Most common presentation is a motor agraphia resulting from damage to some part of the motor cortex in the parietal lobes. Dyslexic
There are several features that distinguish dyslexic-dysgraphia (sometimes called linguistic dysgraphia) from the other types.