Millipedes don’t pose any threats to humans or your household. Mostly, these insects are nuisances but can cause some minor issues.
Millipedes may cause light damage to soft plant material, like seedlings or fallen fruit — though this is often limited to decaying matter. They can attract other pests that feed on them, which could cause you further issues.
While these pests are relatively harmless, their presence can be discomforting. It’s best to work to get rid of them as quickly as possible to keep your home clean and free of pests.