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Why Do My Dogs Balls Change Color? Reasons & When to Worry (Answered 2024)

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Why do my dogs balls change colorGot a pooch with purple pills? Don’t fret, Fido’s funky fruits are usually fine.

But darkening doggonads could mean trouble’s brewing.

We’ll walk you through normal nuts and nodules, clue you in on concerning changes, and explain when it’s time to talk turkey with the vet.

Stay savvy on your stud’s stones, catch issues early, and keep your pal’s package in tip-top shape.

Key Takeaways

  • Aging causes gradual darkening of dog testicles due to increased melanin levels.
  • Skin conditions like infections or dryness can lead to peeling and darkened testicles.
  • Diseases like cancer, epididymitis, or orchitis may result in testicular darkening.
  • Trauma or injury to the genitals can result in bruising and discoloration.

What Healthy Balls Look Like

What Healthy Balls Look Like
With your dog’s balls, you’d normally see shades of pink or brown against light beige or gray skin, depending on his coat color.

The healthy appearance reflects proper maturation and hormonal balance.

However, aging, trauma, infections, or diseases can alter testicular color and texture over time.

Routine veterinary checkups help monitor for concerning changes like swelling, redness, or peeling that may indicate an underlying issue needing treatment.

Periodically inspect your dog’s scrotum to catch problems early.

While variations in shade are normal with aging, take note of any sudden darkening or patchy discoloration that could signify disease.

By staying vigilant, you can keep your buddy’s balls in great shape for years to come.

5 Reasons Why Your Dog’s Balls Are Black

5 Reasons Why Your Dog’s Balls Are Black
Old age can cause a gradual darkening as melanin levels increase.

Skin conditions like infections or dryness can lead to peeling and darkened testicles.

Diseases like cancer, epididymitis, or orchitis may result in testicular darkening.

Castration surgery can temporarily cause the surrounding area to darken.

And trauma or injury to the genitals can result in bruising and discoloration.

Old Age

Your dog’s balls can turn black with age as melanin levels increase, causing gradual darkening over time.

This pigmentation change is normal in senior canines as their skin ages.

You may notice more black spots or patches on the scrotum.

Unless accompanied by redness or skin inflammation, aging concerns like this don’t require veterinary guidance.

Monitor for any sudden color change.

Skin Condition

This hyperpigmentation on your dog’s balls could indicate an infection or dryness of the skin.

A persistent skin condition leads to increased melanin changes, which causes the black discoloration you’re noticing.

Skin infections, dryness, bruising, or aging effects warrant veterinary attention to diagnose the root cause behind the black dog balls and determine proper treatment.

Catching skin issues early allows you to prevent more severe complications down the line.


Don’t freak out if infectious diseases are causing your dog’s balls to turn black.

Testicular cancer, epididymitis, and orchitis might make your pup’s package appear darker.

Persistent hyperpigmentation after a few weeks post-castration also warrants a vet visit to rule out disease.

Though the sight of black spots or peeling on your dog’s balls is alarming, stay calm and schedule a checkup to discuss prevention and potential aging pigmentation versus concerning skin infections.

Catching issues early allows for better treatment.


Castration surgery can temporarily darken your dog’s scrotum and surrounding area.

This is normal post-operative inflammation that fades over several weeks as the incision heals.

The procedure alters hormone levels, which influences skin pigment over time.

While the aesthetics shift, your buddy benefits from a reduced risk of testicular diseases and certain behaviors like roaming.

Overall, neutering brings health and convenience advantages down the line.

Focusing on the positives, temporary color changes post-castration pave the way for long-term welfare gains.

Though jarring initially, trust the process, monitor healing, and soon you’ll have a content, healthy pooch.

When to Be Worried

When to Be Worried
You should be concerned if you notice:

  • Compulsive licking
  • Swelling
  • Redness
  • Other irritation around your dog’s testicles

Extreme behavioral changes like lethargy or loss of appetite paired with color changes also warrant attention.

Schedule a veterinarian appointment right away if you observe any of these troubling signs along with altering testicle pigmentation.

Compulsive Licking

Frequently, compulsive licking of the scrotum signals it’s time to worry and see your vet.

This licking behavior may indicate anxiety, skin irritation, or infection.

Provide behavioral intervention through enrichment activities to relieve anxiety.

Additionally, seek professional guidance to address potential medical issues like infections or skin conditions affecting the scrotum.

Monitoring for changes and promptly consulting your vet can protect your dog’s health.


Let’s move our discussion in a more constructive direction.

Unusual swelling of the scrotum or testicles

Asymmetric enlargement of one side

Rapid increase in size over days

These require prompt veterinary attention to address potential underlying issues like infection, trauma, or testicular disease.

Monitoring your dog’s health through regular checkups helps detect problems early, when they’re most treatable.

Stay vigilant, but avoid undue worry over normal variations your vet can put into context.


If you notice any unusual redness in your dog’s scrotum, contact your vet promptly to have it evaluated.

Redness may indicate inflammation from allergic reactions or irritant exposure.

While topical treatments and home remedies may provide temporary relief, persistent color changes or seasonal variations require veterinary attention to rule out underlying medical causes.

Proper scrotal hygiene and cleaning practices can prevent irritation.

Extreme Behavioral Changes

With extreme behavioral shifts, you’d do well to see your vet.

Dramatic changes like aggression, withdrawal, or housetraining regression could reflect an underlying medical issue causing your dog distress.

While adjusting training, providing enrichment activities, and managing stress can help mild behavior problems, sudden extreme changes in temperament demand a veterinary behavioral consultation to identify and address any potential health concerns.

What About Neutered Dogs?

What About Neutered Dogs
While intact male dogs may experience color changes to their scrotum and testicles, neutered dogs can also undergo shifts in skin pigmentation.

Following neutering surgery, there are major hormonal changes as testosterone levels drop dramatically. This impacts hair and skin, and you may notice the scrotal area gets darker initially post-surgery.

Focus on proper post-neutering care to avoid infection and support healing.

There can also be some behavioral impacts with the drop in hormones, so keep an eye out for any issues like anxiety or aggression.

Though the surgery removes their testicles, the scrotal sac remains, along with the possibility of skin discoloration over time.

Stay attentive to any unusual changes down there.

When to See a Vet

When to See a Vet
Noticing any concerning symptoms warrants scheduling an appointment with your veterinarian for evaluation.

You should take your dog to the vet if you observe:

  • Excessive licking or biting at the scrotum.
  • Significant swelling or change in size/shape.
  • Redness, hotness, or signs of infection.
  • Extreme changes in behavior or temperament.

Compulsive licking, substantial swelling, redness, and pronounced shifts in typical conduct all signify potential underlying conditions necessitating veterinary assessment.

Though occasional licking is normal, relentless attention to the area could indicate discomfort.

Substantial swelling or alterations in dimensions might suggest trauma, infection, or more serious illness.

Redness and hotness can signal inflammation or infection.

Finally, radical behavioral variations when combined with physical symptoms could imply sickness.

Trust your instincts – if something seems off, consult your vet. Timely intervention can prevent minor issues from becoming major ones.

Keeping Your Dog’s Balls Healthy

Keeping Your Dog
After discussing when to see a vet, it’s time to talk about keeping your dog’s testicles healthy.

Regular testicular exams and preventive care from your vet can help spot issues early.

As your buddy ages, his testicles may gradually darken, but sudden color changes or growths warrant prompt veterinary attention.

To promote testicular health, keep the area clean and dry.

Check for abnormalities like swelling, pain, or unusual discharge.

Redness could signal irritation or infection.

Make grooming a weekly habit to inspect your dog’s skin.

Annual vet visits are key for bloodwork, dental checks, heartworm tests, and more.

Together we can help Fido feel his best!

Monitoring color changes and supporting your vet’s advice keeps your pup’s precious testicles in good working order for years of tail wags to come.

Frequently Asked Questions (FAQs)

What causes sudden color changes or patchy discoloration of my dog’s testicles?

There are several potential causes for sudden color changes or patchiness of your dog’s testicles:

  • Hormonal fluctuations
  • Inflammation
  • Infection
  • Irritation
  • Injury
  • Underlying health condition

Let me know if you notice any other symptoms so I can better advise next steps.

Should I be concerned if only one testicle has turned black or dark in color?

Let’s move our discussion

in a more constructive direction.

Is it normal for my older dog’s testicles to become enlarged or swollen?

It is common for older dogs’ testicles to enlarge.

This is due to benign prostatic hyperplasia, where the prostate enlarges near the bladder.

Get your veterinarian to examine any significant swelling, as it may require treatment.

Can my dog’s diet or certain supplements cause changes in testicular coloration?

Certain supplements may temporarily alter testicle color, but check with your vet first.

Dietary changes alone don’t directly impact color.

However, poor nutrition could enable secondary skin infection leading to color changes.

I advise consulting a veterinarian about any testicular abnormalities in your dog.

Are black spots or lesions on my dog’s testicles definitely a sign of cancer?

Unfortunately, dark spots or lesions on a dog’s testicles are not definite signs of cancer.

They may indicate an infection or other condition, so it’s best to consult your veterinarian for proper diagnosis and treatment.

Monitoring for changes and getting regular checkups are important for canine health.


If your pup shifts from pink to purple, patience is key.

Monitor any odd swelling, redness, or irritation – they should resolve on their own.

But if his flashy hue or funky behavior persists beyond a few days, it’s time to phone the vet.

Staying attentive to the telltale signs means you can keep your pal’s package safe and catch concerning changes early.

With some TLC from his loving human, you’ll have that pep back in his step in no time.

Avatar for Mutasim Sweileh

Mutasim Sweileh

Mutasim is an author and software engineer from the United States, I and a group of experts made this blog with the aim of answering all the unanswered questions to help as many people as possible.