The biology behind why Shih Tzus digging
Shih Tzus were bred exclusively as Chinese imperial lap dogs with no working, hunting, or earth-dog history, meaning digging is not a deeply hardwired genetic drive for the breed. However, their low boredom threshold and strong desire for human attention can lead to digging as a boredom or attention-seeking outlet, particularly in dogs that are left alone in yards for extended periods. Their flat-faced anatomy also makes them sensitive to heat, so they may dig cool dirt patches as a self-regulating temperature behavior rather than out of any true terrier-like instinct.
Why it gets worse before it gets better
Owners who leave their Shih Tzu unsupervised in the yard for long stretches inadvertently reinforce the behavior by giving the dog nothing else to do, turning digging into the default entertainment. Reacting dramatically when catching the dog in the act — even with scolding — can unintentionally reward attention-seeking Shih Tzus who have learned that digging is a reliable way to get their owner to come outside and engage with them.
Consistency is the mechanism of change: Even one instance where the behaviour is reinforced sets progress back significantly. The dog only persists because it has worked before.
The most common owner mistakes
These are the patterns that keep Shih Tzu owners stuck in a cycle for months or years:
Treating It Like a Terrier Problem
Many owners apply digging solutions designed for earth dogs or working breeds, which dramatically overcomplicates the fix. Shih Tzu digging is almost never instinct-driven in the same way, so the root cause is usually environmental or emotional rather than genetic.
Using the Yard as a Babysitter
Because Shih Tzus are small and seemingly low-energy, owners often assume unstructured yard time is enriching — but this breed craves human interaction above all else. Yard time without engagement is essentially isolation for a Shih Tzu, which accelerates boredom digging.
Ignoring the Heat Connection
Owners frequently punish digging without noticing the dog consistently targets shaded or moist soil areas on hot days. For a brachycephalic breed like the Shih Tzu, this is a comfort and thermoregulation response that requires a management solution, not a behavioral correction.
What a proper fix requires
Solving digging in a Shih Tzuis not a single technique — it's a protocol built across multiple phases. What genuinely works involves:
What an effective protocol looks like for this breed
The exact sequence, timing, and progression for your specific dog depends on their age, how long the behaviour has been reinforced, and your environment. That's what a personalised plan accounts for.