Some conditions, like a mild dysplasia, will rarely have any detrimental effect on the dog's ability to be a loving, friendly companion but simply make the animal a poor choice to keep in a breeding program when you are trying to eliminate these problems. Other more serious conditions may or may not impact on the dog's ability to function in your lifestyle, or may seriously reduce the dog's expected lifespan. Again, only you can decide what risks you are willing to take. Allergies Many people are subject to suffering from allergies to dogs. This does not necessarily rule out living with a dog but it does limit your choices.
Some breeds of dogs have hair instead.
The main difference between the two is that fur sheds, hair does not. Many people with dog allergies report having less or no reaction to dogs with hair. Therefore, you may want to investigate this possibility. The breeders will be able to tell you whether or not their breed might be suitable for your situation. So if you have a mild reaction to your new puppy, and you're willing, you might be able to wait it out, realizing that there is no way to tell for sure whether or not the condition will worsen.