However, it's important to remember that these are just guidelines. Some Miniature Schnauzers may be slightly taller or shorter, and this doesn't necessarily mean they're not healthy or well-bred.
Here are some additional factors to consider:
* Individual variation: Just like humans, dogs come in different shapes and sizes. Some Miniature Schnauzers may be naturally taller or shorter than others.
* Breeding standards: The American Kennel Club (AKC) has specific breed standards for Miniature Schnauzers, but these are not absolute rules.
* Health: A Miniature Schnauzer's height shouldn't be the only factor you consider when assessing their health. It's important to look at other factors like their weight, coat condition, and overall demeanor.
Ultimately, the most important thing is to find a Miniature Schnauzer that is healthy, well-adjusted, and fits your lifestyle.