
Is Littermate Syndrome a Myth?
Yes. And Here’s Why It Matters
Plenty of people get nervous when they think about raising two puppies together. You’ll often hear things like “Don’t do it, you’ll get littermate syndrome” or “It’s impossible to train them both at once.” But let’s take a closer look at that.
The term “littermate syndrome” sounds official, even medical. But it’s not a real syndrome. It’s just a label people use when two dogs seem overly dependent on each other or start to show behavioural issues. The thing is, that’s not because they’re siblings. It’s because they haven’t been taught how to grow into confident individuals.
At Coots at Eversden, we’ve seen first-hand how the right start makes all the difference. From the moment our puppies are born, we follow a clear, structured plan that helps each one develop confidence, independence, and calm self-control. With the right approach, any puppy—whether raised alone or with a littermate—can thrive.
Why the Label Doesn’t Help
The trouble with calling it a syndrome is that it makes people think it’s something that just happens and can’t be avoided. That’s not true. What people are really seeing is a result of missed steps in development and training. It’s not about being littermates—it’s about whether they’ve had the right experiences at the right time.
It’s All About How They’re Raised
Two puppies will naturally want to stick together. That’s to be expected. But if you don’t give them chances to be apart, to learn on their own, and to look to you for guidance, you’ll likely end up with problems. This isn’t unique to siblings—it can happen with unrelated dogs too.
Our process focuses on creating well-rounded dogs who can cope with the world independently. We help them build confidence and stay calm in new situations. That only works if it continues once they leave us. Owners need to maintain the same level of structure and input.
There Will Always Be a Top Dog
One dog in a pair will usually be a bit more confident or take the lead. That’s natural pack behaviour, and it’s not a problem unless you allow it to become unbalanced. Dogs don’t care about being siblings. They respond to energy, routine, and leadership. That’s what really shapes their behaviour.
Before You Bring Home Two Dogs, Ask Yourself This
Are you ready to lead them?
Can you give each dog enough one-on-one time?
Will you be a calm, consistent leader?
Having each other for company is lovely, but it’s not enough on its own. Dogs, especially clever ones like dachshunds, need clear direction. They need someone they can trust to lead the way.
When Behaviour Slips
Even the best-raised dogs can have off days. Changes in the home, travel, hormones or even weather can affect them. But it’s never just down to them being siblings. With patience and a bit of effort, most issues can be worked through.
The Truth Is Simple
It doesn’t matter if you have one dog or five. What matters is the time, effort, and consistency you bring to the task. If you show favouritism, you’ll create tension. But if you stay fair and clear, your dogs will feel secure.
Littermate syndrome isn’t the real issue. The real issue is how we show up as owners. When we lead well, our dogs follow with trust, balance, and love.


