1. Pugs

Though charming with their wrinkled faces and playful demeanor, pugs come with challenges that make them terrible pets. Pugs have breathing difficulties, are prone to respiratory issues and almost all suffer from obesity. They’re basically walking vet bills. Other common health problems include skin fold infections and eye issues. Pugs have good temperaments most of the time, but they also have severe attitudes, which, if left unchecked, turn into behavioral problems and aggression. Pugs aren’t ideal dogs and should not be bred the way they are.

2. Chihuahuas

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Known for being yappy, the issues with chihuahuas extend past their loud mouths. Chihuahuas are incredibly small, leading to many injuries and making them unsuitable for households with children and other larger pets. Their bite force may not be as worrisome for adults, but there is a worry for children, especially with the short temperament and lack of other defenses. While they do have relatively long life spans, they are prone to heart disease and joint conditions like patella luxation, which is the dislocation of the knee cap.

3. Siberian Huskies

Sure, they have big, fun personalities and love to ‘sing the songs of their people,’ but their double coat makes huskies nuisances to live with — especially in warm climates. The grooming needs of huskies are insane, and each grooming session produces huge amounts of fur, an allergy nightmare. They are large and extremely high energy, meaning these dogs require a lot of space and play. Their high intelligence makes them a force to be reckoned with if they find themselves bored. Huskies are prone to eye issues and thyroid problems.

4. Borzois 

These long, thin dogs, who have lovingly been dubbed “horse dogs” by many owners and fans, are fun to watch but a handful to take care of. Borzois, also known as Russian Hunting Sighthounds, have high prey instincts, making housing with other animals and even small children dangerous. They suffer from many joint issues, such as hip dysplasia, and are also at a higher risk of bloat. Borzois have a lifespan of 9-14 years, which is long for their overall size, so they are definitely a commitment if adopted.

5. Shar Peis

Shar Pei dogs’ infamous rolls are prone to many skin conditions and require intensive care and monitoring. Shar Peis, a breed originating in China, has become something of a designer breed, but many don’t know what they’re getting themselves into by adopting one. Shar Peis are known for their intense loyalty, but that fierce protectiveness can turn into aggression without proper socialization. While they do well with children when properly trained, they require a lot of care and attention that can be hard to balance in a family home.