This systematic review and meta-cluster analysis provides robust evidence for the existence of at least five SRC subtypes, identified as a migraine cluster, a cognitive–emotional cluster, a sleep–emotional cluster, a neurological cluster, and an undefined feelings cluster, with clear relevance to clinical outcome.

The results of this study may pave the way for the transition from a unitary approach to SRC management towards individualized and targeted concussion management and treatment, with the ultimate aim to optimize the recovery of SRC.