Unfortunately, this breed that was considered one of the healthiest breeds ever, now has a decent amount of hereditary diseases - probably due to its popularity. Fortunately, testing is able to reveal these diseases before their symptoms show up
Eye-related diseases – include Progressive Retinal Atrophy (PRA), Collie Eye Anomaly (CEA), which is also called Sheltie Eye Syndrome (SES). Von Willerbrand disease and other hereditary diseases related to blood composition. Hip Dysplasia. Thyroid Gland diseases
It is also known that 2 big lines of Shelties are affected by epilepsy, liver diseases, 2 forms of lupus, and a couple of skin diseases.
Before buying a puppy, it is strongly recommended to ask your breeder about all the diseases that the exact line has. All the breeders that say that Shelties do not have any health issues are liars, so you would be better to buy a puppy somewhere else.
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