Some types of CDG, including ALG3-CDG, ALG6-CDG, ALG9-CDG, ALG12-CDG, PGM3-CDG, CSGALNACT1-CDG, SLC35D1-CDG, and TMEM-165, were reported with well-defined skeletal dysplasia (61–69). This evidence concerns the gene SLC35D1 and skeletal dysplasia.