Horse Cushings Disease: PPID Management and Welfare

Pituitary Pars Intermedia Dysfunction is the most common hormonal disorder in older horses, causing laminitis, weight loss, and reduced immune function if unmanaged.

Key Facts

PPID affects an estimated 20 to 30% of horses over 15 years of age
Hypertrichosis - abnormal coat growth - is a classic but late-presenting sign
Pergolide medication effectively controls PPID in most affected horses
PPID is a leading risk factor for laminitis in senior horses
The ACTH seasonal rise in autumn makes testing timing critical for accurate diagnosis

Welfare Considerations

PPID is a progressive condition that causes significant suffering through laminitis, muscle wasting, and increased susceptibility to infection. The delayed recognition of early PPID, which presents with subtle signs before the classic shaggy coat develops, means many horses experience chronic low-grade illness before diagnosis. Modern treatment with pergolide is effective and affordable, making early diagnosis transformative for welfare. Regular screening of horses over 15 with autumn ACTH testing enables treatment before severe manifestations develop.

What You Can Do

Screen horses over 15 for PPID with autumn ACTH blood tests
Learn to recognise early PPID signs including subtle coat changes, muscle wasting, and increased drinking
Work with your vet to find the optimal pergolide dose for your horse
Monitor PPID horses carefully for laminitis, particularly in spring and autumn
Join horse welfare groups to stay updated on PPID management advances