Das Neves SP et al. demonstrated that dysfunction of the meningeal lymphatics leads to the loss of mature oligodendrocytes and subsequent demyelination in the brain. Defective meningeal lymphatics create a neuroinflammatory environment that hinders the replenishment of oligodendrocytes following a demyelinating injury. Interestingly, in patients with multiple sclerosis, a decrease in vascular endothelial growth factor C in the cerebrospinal fluid may indicate impaired meningeal lymphatic function. This research is highly relevant, as it may have therapeutic implications for autoimmune demyelinating disorders.