are teacup Yorkies hard to take care of?

Yes, because their poor, poor breeding leads to many health problems which can be very demanding on the owners time and wallet.
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Inbreeding of this type of dog has lead to all kinds of skin problems. Small dogs often have dental problems. These dogs can be very small and very costly. Several hundred dollars to purchase and several hundred dollars per year for shots and vetting and that's if the animal is healthy not to mention food toys and extras. To be taken care of properly any dog is expensive and not a decision to be made quickly.
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I have dogs and my vet loves me!

There is no such thing as a teacup Yorkie. Before considering ANY breed of dog, I would suggest you thoroughly research and educate yourself on the breed first. No ethical, reputable breeder is going to purposely try to produce extremely small pups–responsible, good breeders place emphasis on health, temperament ad conformation to the standards rather than on size.

I can tell you as the owner of a 3 lb Yorkie that YES, they are extremely hard to care for. They are very prone to injury and have to be handled with the utmost care.
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