Why Your Dog Smells Worse in Summer And What That Odor Is Trying to Tell You

Why Your Dog Smells Worse in Summer And What That Odor Is Trying to Tell You
May 18, 2026

If your dog seems a little… stronger-smelling in the summer months, you’re not imagining it.

At Healthy Pets of Ohio, we hear this all the time once the weather warms up: “My dog suddenly smells worse—what’s going on?”

While a mild “dog smell” can be normal, noticeably stronger or unpleasant odors are often a sign of an underlying issue—especially in the heat and humidity we get here in Central Ohio.

Let’s break down what’s behind that summer smell—and when it’s time to take a closer look.

Why Pets Smell More in Summer

Summer creates the perfect environment for odor-causing bacteria and yeast to thrive.

Contributing factors include:

  • Heat and humidity
  • Increased swimming and moisture exposure
  • More outdoor activity
  • Seasonal allergies

All of these can lead to changes in your pet’s skin, ears, and coat—often resulting in stronger odors.

The Most Common Causes of Summer Odor

  1. Skin Infections (Bacteria or Yeast)

Warm, moist environments—like under the collar, between skin folds, or under thick coats—are ideal for bacteria and yeast overgrowth.

Signs to watch for:

  • A musty or “corn chip” smell
  • Red, irritated skin
  • Excessive scratching or licking
  • Greasy or flaky coat

These infections won’t resolve on their own and often require treatment.

  1. Ear Infections

Ear infections are one of the top reasons dogs develop strong odors in summer.

Moisture from swimming or bathing—especially in dogs with floppy ears—can get trapped and lead to infection.

Common signs:

  • Strong, unpleasant smell from the ears
  • Head shaking or scratching
  • Redness or discharge
  1. Allergies (Very Common in Ohio Summers)

Environmental allergies are extremely common in Central Ohio and often flare up in late spring and summer.

Allergies can cause:

  • Itching and licking
  • Skin inflammation
  • Secondary infections (which cause odor)

Many pet owners think the smell is the problem—but it’s often a symptom of underlying allergies.

  1. Wet Dog + Bacteria = Odor

That classic “wet dog smell” isn’t just water—it’s caused by microorganisms on your dog’s skin releasing odor as they interact with moisture.

Frequent swimming (pools, lakes, rivers) can amplify this effect—especially if your dog isn’t dried properly afterward.

  1. Anal Gland Issues

Sometimes the smell isn’t coming from the coat at all.

A strong, fishy odor may indicate:

  • Full or impacted anal glands
  • Leakage or discomfort

This is a common (and often overlooked) cause of sudden odor.

When Odor Means Something More

If your pet’s smell has noticeably changed, it’s worth paying attention—especially if you also notice:

  • Increased scratching or licking
  • Red or irritated skin
  • Ear discharge or head shaking
  • Hair loss or hot spots
  • Changes in behavior

Odor is often one of the first signs of a developing issue.

How to Keep Your Pet Fresh This Summer

A few simple habits can go a long way:

  • Rinse and fully dry your dog after swimming
  • Keep ears clean and dry
  • Stay consistent with grooming
  • Use veterinarian-recommended shampoos (not human products)
  • Stay on top of flea and allergy prevention

Avoid over-bathing, though—it can strip natural oils and make skin issues worse.

Don’t Just Mask the Smell—Treat the Cause

Air fresheners, sprays, and frequent baths may temporarily cover up odor—but they won’t fix the underlying issue.

At Healthy Pets of Ohio, we focus on identifying why your pet smells different and treating the root cause—whether it’s an infection, allergies, or something else.

Remember

A stronger smell in summer is common—but it’s not always normal.

In many cases, odor is your pet’s way of signaling that something isn’t quite right.

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