Collies (Rough and Smooth) – Disease Predisposition


  • Cutaneous histiocytosis
  • Superficial bacterial folliculitis
  • Muzzle folliculitis/furunculosis
  • Malassezia dermatitis
  • Protothecosis
  • Food hypersensitivity
  • Pemphigus erythematosus
  • Discoid lupus erythematosus
  • Idiopathic ulcerative dermatosis in Shetland Sheepdogs and Collies
  • Vitiligo
  • Waardenburg-Klein syndrome
  • Idiopathic sterile granuloma andpyogranuloma
  • Drug reactions – Ivermectin and milbemycin – High doses can cause tremors, ataxia, coma and death
  • Gastric neoplasia (Rough Collies)
  • Lymphocytic-plasmacytic colitis (Rough Collies)
  • Pancreatic acinar atrophy (causing exocrine pancreatic insufficiency)
  • Canine cyclic neutropaenia
  • Immune-mediated haemolytic anaemia
  • Systemic lupus erythematosus
  • Aspergillosis
  • Carpal ligament weakening
  • Carpal soft tissue injuries
  • Congenital elbow luxation
  • Calcaneoquartal subluxation due to plantar tarsal ligament rupture
  • Sweat gland tumour
  • Benign fibrous histiocytoma
  • Haemangiopericytoma
  • Keratoacanthoma
  • Nasal cavity tumours
  • Colorectal neoplasia
  • Congenital bilateral vestibular disease
  • Congenital deafness
  • Cerebellar degeneration (seen in Rough Collies in Australia)
  • Neuroaxonal dystrophy
  • Micropalpebral fissure
  • Entropion (usually lower lids, may be associated with micropalpebral fissure)
  • Distichiasis (Rough Collies)
  • Medial canthal pocket syndrome – Breed predisposition resulting from head shape
  • Nodular Episclerokeratitis
  • Microcornea
  • Congenital, sub-epithelial, geographic corneal dystrophy
  • Corneal dystrophy (Rough Collies)
  • Cataract
  • Collie eye anomaly –  High incidence in this breed throughout the world (50–90% has been reported)
  • Multifocal retinal dysplasia
  • Generalised progressive retinal atrophy (GPRA)
  • Central progressive retinal atrophy (CPRA) or retinal pigment epithelial dystrophy (RPED) – becoming less prevalent after the introduction of control schemes
  • Optic nerve hypoplasia
  • Optic nerve colobomas (the result of merle to merle breeding)
  • Ectopic ureters
  • Urethral sphincter mechanism incompetence (causing urinary incontinence)
  • Penile hypoplasia
  • Aspergillosis

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