Sheep Mulesing: Pain, Alternatives, and Industry Reform

Mulesing — the removal of wool-bearing skin from around the breech of Merino sheep — is performed to prevent blowfly strike but causes acute and chronic pain. Alternatives are available and adoption is growing in some sectors.

Key Facts

Mulesing is practiced primarily in Australia and affects millions of Merino lambs annually.
The procedure involves cutting skin from around the tail and breech area without analgesia in most conventional operations.
Blowfly strike (flystrike) can kill sheep in 24-48 hours if untreated; mulesing reduces strike risk significantly.
Pain-relief-free mulesing is increasingly prohibited by major wool buyers including brands like Patagonia and H&M.
Non-mulesing alternatives including selective breeding, chemical clip, breech modification, and pain-relieved mulesing are all practiced.

Welfare Considerations

Mulesing without analgesia causes severe acute pain and prolonged wound pain lasting several weeks. Lambs show elevated cortisol, reduced activity, and wound-directed behavior after the procedure. The welfare argument against mulesing is compelling, but the welfare argument for preventing flystrike — which causes severe suffering and death — is also valid. The resolution lies in pain relief for necessary procedures and long-term selection of low-risk breeds. Industry-led timelines for phasing out unanesthetized mulesing are moving slowly; market pressure from international brands has driven faster change than domestic regulation.

What You Can Do

Choose wool products from certified non-mulesed sources or brands with mulesing-free commitments.
Support Responsible Wool Standard (RWS) certified products that address mulesing among other welfare criteria.
Advocate for mandatory pain relief for mulesing procedures in Australian wool industry standards.
Follow campaigns by FOUR PAWS and other organizations on Merino sheep welfare.
Ask wool-using brands about their mulesing policies when making purchasing decisions.