L.B.
My son has dysgraphia. An Occupational Therapist can test for it and they can help him with lessons, using a computer in school vs writing and offer assistance as requiring him to take less notes and less rote writing in class etc...
It is not the worse thing in the world, however it often accompanies other learning disabilities - Remember a learning disability does not mean non smart - just means that your child learns in a different way.
simply put people with dysgraphia have trouble getting what is in their brain down to their fingers and onto the paper. Their writing is often sloppy, mixed with capital and small letters, crooked sentences, letters of different size, poor spelling and punctuation etc...
The school does the testing and they are required to do the testing under the No Child Left Behind Laws