Even top show quality dogs are not 100% free from genetic diseases. It is just that dogs bred by reputable breeders will have a lower possibility of getting genetic diseases early on in life. This is because they will have their breeding dogs tested for these genetic problems before they are bred. Normally, from what i've read, genetic diseases "hit" dogs after the age of 1 year. I'm not sure about this, you'll have to wait for other people to reply.

Different breeds are prone to different genetic peoblems so i don't think i can say more till you have determined a breed of dog that you like. Are you looking for HDB approved dogs? If so, you can refer to the list of dog breeds on their website.

Will this be the first time you keep a dog? And do you, or any family member have any allergies towards fur? Certain breeds are okay for allergy prone people so you might want to only consider these breeds if there are people in your household that have these problems.

Hope this helps.

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