| Vitiligo is a condition where patches of skin loose their pigmentation. |
It can be hereditary and arise spontaneously, particularly in roan coloured horses and ponies. The depigmented skin becomes pink in colour and these areas are usually located around the eyes and muzzle, although the vulva, anus, sheath and penis are sometimes affected.
Vitiligo can also be caused by badly fitting tack. It often occurs on the corners of the mouth and the sides of the dock where rubber guards are used on the bit and crupper. Rubbing causes the pigment cells to be destroyed and pink areas appear.
There is no treatment for Vitiligo.