Common Chihuahua Health Myths That Just Aren’t True

Chihuahuas are one of the most misunderstood dog breeds out there. Because they’re tiny, expressive, and full of personality, myths about their health get repeated a lot—and some of them can actually lead to poor care decisions.

Let’s clear the air and bust some of the most common Chihuahua health myths that just aren’t true.

Myth #1: Chihuahuas Are Fragile and Sickly

The truth:
Chihuahuas are small, not weak.

When properly cared for, Chihuahuas are surprisingly sturdy and often live longer than many larger breeds. Many Chis live well into their late teens—and some into their early 20s.

What is true:

• They’re more vulnerable to injury if dropped or mishandled
• They need protection from cold and rough play

But fragile by nature? Nope.

Myth #2: Shaking Always Means Something Is Wrong

The truth:
Shaking is common in Chihuahuas—and it’s usually not always a medical issue.

Chihuahuas may shake because they’re:

• Cold
• Excited
• Nervous or overstimulated
• Anticipating food or attention

However, constant or sudden shaking combined with lethargy, pain, or appetite loss should be checked by a vet.

Shaking alone doesn’t automatically mean illness.

Myth #3: Chihuahuas Don’t Need Exercise

The truth:
Chihuahuas absolutely need regular exercise.

They may not need long hikes, but daily movement is important for:

• Joint health
• Weight control
• Mental stimulation
• Reducing anxiety and behavior issues

Short walks, indoor play, and puzzle toys go a long way.

A bored Chihuahua is far more likely to develop behavior and health problems.

Myth #4: Dental Problems Are Just “Normal” for Chihuahuas

The truth:
Dental disease is common—but it’s not inevitable.

Because of their small mouths and crowded teeth, Chihuahuas are more prone to:

• Tartar buildup
• Gum disease
• Tooth loss

But good dental care makes a huge difference:

• Regular brushing
• Dental chews (approved by your vet)
• Professional cleanings when needed

Tooth loss shouldn’t be shrugged off as “just part of being a Chi.”

Myth #5: Chihuahuas Are Too Small for Anesthesia or Surgery

The truth:
Chihuahuas can safely undergo anesthesia when handled properly.

Modern veterinary medicine routinely treats very small dogs. The key is:

• Proper dosing
• Pre-surgery bloodwork
• An experienced veterinary team

Avoiding necessary procedures out of fear can sometimes cause more harm than good.

Myth #6: Chihuahuas Are Naturally Aggressive

The truth:
Aggression is not a breed trait—it’s usually fear, pain, or poor handling.

Many Chihuahuas labeled “snappy” are actually:

• In pain
• Overhandled
• Picked up incorrectly
• Ignored when they show stress signals
• Have not been socialized properly

When their boundaries are respected and their needs met, most Chihuahuas are affectionate, loyal, and deeply bonded to their people.

There are exceptions where poor breeding may lead to aggression.

Myth #7: Chihuahuas Don’t Feel Pain the Same Way Larger Dogs Do

The truth:
Pain is pain—size doesn’t change that.

Because Chihuahuas are small, they may:

• Hide pain
• Become withdrawn or irritable
• Avoid being picked up or touched

Behavior changes are often the first sign that something is wrong.

Never dismiss discomfort just because your Chihuahua is tiny.

Myth #8: A Fat Chihuahua Is a Healthy, Happy Chihuahua

The truth:
Extra weight is especially dangerous for small dogs.

Even a pound or two of excess weight can:

• Stress joints
• Worsen breathing
• Increase the risk of heart issues

A healthy Chihuahua should have:

• A visible waist
• Ribs you can feel (but not see prominently)
• Easy movement without strain

“Cute and chunky” isn’t cute to their joints.

The Bottom Line

Chihuahuas aren’t delicate ornaments or walking medical problems—they’re real dogs with real needs. Many health issues blamed on the breed actually come from myths, misunderstandings, or improper care.

The more we understand what’s true, the better—and longer—our Chihuahuas can live. Share in the comments some of the myths you have heard from people, or even some that you have believed yourself.