"Many horses seem to struggle with laminitis during the winter months. Cold weather can cause winter laminitis in horses. Most people associate spring and the flush of grass with the onset of laminitis season however many owners report problems in winter, particularly with horses who have a history of metabolic issues resulting from insulin resistance or Cushing's (PPID)"...
Read full article: https://forageplustalk.co.uk/winter-laminitis