Teacup kittens have a variety of health issues, including soft and deformed bones, weakness, and decreased use of limbs, according to Pet Assure. Teacup kittens also have enlarged hearts, heart murmurs, seizures and other neurological problems.
Miniature cats are generally more prone to health problems than larger cats because of their very small size, notes Pet Assure. Kittens are especially vulnerable due to their small size and should be at least 5 months old before adoption. Teacup kittens are prone to head trauma because they have a soft spot on their skull and may also suffer from bowed legs and a misshapen jaw. Miniature cats have shorter lifespans than normal cats and may not develop normal reproductive organs as a result of their condition.
Teacup cats refer to cats that are smaller in size than typical cats, which can be due to genetic, hormonal and environmental reasons, explains Pet Assure. Only teacup cats born with genetic dwarfism are genuine teacup cats. Genetic factors for dwarfism can occur spontaneously or due to selection and breeding. Non-genetic factors for miniature cats include premature birth or emaciation in kittens. Genuine teacup kittens that come from good breeders are generally healthier because the breeders make sure that the gene pool stays wide to avoid genetic defects, as interbreeding damages the immune system and results in various health problems.