Why do people say the runt is always prone to health problems?

some runts r prone to health problem. more so if they r a smaller breed. my dog was the runt of his litter and he has never had any health problems (although we think he is a little crazy) it kind of depends on the breed

It is not always true, but they would have a higher chance of having somehting wrong. If they are smaller because they have a medical issue that is making them smaller, or they are smaller because they were not getting theri fair share…either way, it can signal issues and should be avoided unless someone is willing to deal with that possibility.

Sometimes it works out…sometimes it doesn’t.

Some runts are genetically unsound. Others were simply born only very slightly smaller than their littermates and had trouble obtaining their fair share of milk, particularly in large litters, thus exacerbating the problem of their smallness.

In pet-quality dogs who are never bred or thoroughly checked for genetic defects, genetic problems not immediately visible that may have affected birth size simply never come to light.

A malnourished pup is less likely to have the good start in life that his larger and better nourished brothers and sisters will. He may have missed out on vital colostrum from his mother. Many runts will go on to have healthy lives and make great dogs, just as many low birth-weight human babaies do, but ideally one should never pick a runt from a litter without at least having seen documentation from a vet that attests to its health.

There is a difference between a ‘runt’ and the smallest puppy. Many people automatically label the smallest puppy as a ‘runt’ when in fact it may not be one.

A true ‘runt’ is smaller because it is unhealthy, not unhealthy because it is smaller. It may be smaller because of a cleft palate, which would prevent the puppy from nursing, if it didn’t kill it first. It may have a portosystemic liver shunt, which is often evident by a puppy being smaller and unthrifty. Just a couple of possibilities. A ‘runt’ will not have the strength to fight the siblings for food, nor will it have the energy to exercise as much so it won’t be as strong.

True ‘runts’ are often allowed to ‘fade’ by the mom. In the wild, an unthrifty puppy is a liability to the rest of the litter, so the runt can be nudged aside in favour of the stronger, healthier puppies.

It is our human nature to want to nurture and save everything, so we sometimes go out of our way to salvage a puppy that nature herself would not.

Not every litter has a runt. Every litter has a biggest puppy and a smallest puppy, but not a runt.

Some people are just a bit weird, there is nothing wrong with the runt, some people prefer the runt some don’t. A dog is a dog and if you look after them well all should be good.