Tail docking of dairy cattle is banned in several countries but still practised in others, with welfare science providing clear evidence against the procedure.
Tail docking causes acute surgical pain and denies cattle a functional appendage used for fly control and social communication. Research has not demonstrated hygiene or mastitis reduction benefits sufficient to justify the welfare cost. The procedure is medically unnecessary and serves primarily management convenience. UK and EU bans have demonstrated that dairy farming is viable without tail docking. Advocacy for global harmonisation of tail docking bans based on welfare evidence continues to be important.