Smegma In Dogs: How To Clean Preputial Discharge?

Smegma in dogs, also known as preputial discharge, is normal in male dogs. It is a mixture of shed cells and glycoproteins within the preputial sheath. This natural secretion serves as a lubricant and protective barrier. 

Smegma is commonly observed during sexual maturity due to hormonal changes. Regular hygiene practices are essential to managing smegma in a male dog, including gentle cleaning without harsh chemicals or excessive force. 

If any abnormalities or concerns arise, it is advisable to consult a veterinarian for further guidance and evaluation. Watch out for the dog smegma infection symptoms mentioned in our guide.

Basic Anatomy Of A Dog’s Penis

The anatomy of a dog’s penis is a fascinating and essential aspect of canine reproductive health that many male dog owners may not be familiar with. At the core, the primary parts include the non-erect penis, the os penis, and its protective outer layer, the prepuce or sheath.

A healthy dog’s penis appears bright pink or red. It is coated with smegma – a mucus-like substance responsible for trapping germs and maintaining necessary moisture levels around the genital area.

While these features might sound unusual or off-putting, they serve crucial functions in safeguarding your beloved companion from infections.

smegma in dogs
smegma in dogs

When Can Smegma Be A Problem?

Excessive smegma buildup in the prepuce may lead to irritation, foul odor, or infection. A problem with smegma might also arise when underlying health issues are at play. Urinary tract infections (UTIs), injuries to the genital area, allergies, or even prostate disorders can result in increased production and buildup of smegma.

Treatment Of Smegma in Dog’s Genitals

Treatment of dog smegma often involves a combination of approaches to ensure the health and comfort of your pet. Appropriate care includes:

  • Cleaning or flushing the dog’s prepuce: Gently remove accumulated smegma using a soft cloth or cotton swab soaked in warm water.
  • Oral antibiotics: Administer prescribed medications to address potential bacterial infections that may cause excessive smegma production.
  • Topical treatments: Applying creams or ointments recommended by a veterinarian to soothe irritated skin and promote healing.
  • Maintaining proper hygiene: Regularly cleaning the genital area can help prevent smegma buildup and reduce the risk of skin irritation and infection.
  • Monitoring your dog’s behavior: Ensuring that your pet is not excessively licking their genitals, which could worsen the issue and introduce harmful bacteria.
  • Seeking veterinary advice: Consult a professional for a proper diagnosis if smegma production continues despite at-home treatments.

How To Clean Dog Smegma Yourself At Home?

To clean your dog’s smegma at home, gather necessary supplies like warm water, mild soap, and baby wipes; bathe your pet; clean their genital area gently to avoid hurting them; apply hydrogen peroxide for antibacterial properties. Dry them off, and monitor their health afterward.

Step 1: Gather The Necessary Supplies

Before cleaning your dog’s smegma, ensure you have all the necessary supplies. These include:

  1. A soft cloth or cotton balls
  2. Mild dog shampoo or soap
  3. Warm water
  4. Hydrogen peroxide
  5. Disposable gloves
  6. A towel or pet-safe dryer for drying your pet after cleaning

Step 2: Bathe Your Male Dog

Bathing your pet is essential in cleaning your dog’s penis-infected smegma as it helps remove any excess discharge and dirt trapped in the fur. Here are the steps to follow:

  1. Use a mild, non-irritating soap: Choose a gentle soap on your pet’s skin to avoid causing any further irritation.
  2. Warm Water: Use warm water to wet your pet’s genital area before applying soap.
  3. Apply Soap: Gently rub the soap on the affected area using your hands or a soft cloth.
  4. Rinse Thoroughly: Rinse off all the soap with warm water until no suds remain.
  5. Dry Your Pet: Use a clean towel to pat your pet dry thoroughly, including the genital area.
  6. Monitor Your Pet’s Health: Keep an eye on your pet for any signs of discomfort or abnormal behavior after bathing them.

Step 3: Clean The Genital Area

After bathing your pet, it’s time to clean the genital area. Here are the steps to follow:

  1. Apply a mild soap and warm water to the area.
  2. Gently rub the area with a washcloth or towel, careful not to irritate your dog’s skin.
  3. Rinse thoroughly with warm water and make sure there is no leftover soap residue.
  4. Dry the area thoroughly using a clean towel or paper towel.
  5. Consider using non-perfumed puppy wipes for further cleaning.
what causes smegma in dogs
what causes smegma in dogs

Step 4: Apply Hydrogen Peroxide

To effectively clean dog smegma, pet owners can use hydrogen peroxide as a safe and effective solution. Here are the steps for applying hydrogen peroxide:

  1. Soak a cotton ball or cloth in hydrogen peroxide.
  2. Gently apply the solution to the affected area, making sure not to get any in your dog’s eyes or mouth.
  3. Allow the solution to sit for a few minutes to break down the dead skin cells and bacteria causing the smegma buildup.
  4. Wipe away any excess hydrogen peroxide and debris using a clean cotton ball or cloth.
  5. Repeat this process until all of the smegma has been removed.

Also, do not use hydrogen peroxide on open wounds or sores; it can slow healing and cause further irritation. Use non-perfumed puppy wipes or warm salty water on a cloth as an alternative cleaning method for these cases. .

Step 5: Dry Your Pet

Drying the area helps prevent the accumulation of bacteria and odor. Here are some steps on how to dry your pet after cleaning:

  1. Use a clean or paper towel to pat dry your pet’s genital area gently.
  2. Make sure all moisture is removed from the skin folds and crevices.
  3. Use a hairdryer on low heat to dry excess moisture if necessary.
  4. Avoid using a hairdryer in high heat, as this can burn your pet’s skin.

Step 6: Monitor Your Pet’s Health

After cleaning your pet’s smegma, it is essential to monitor their health to ensure no underlying medical issues. Here are some things you should watch out for:

  • Check for any signs of inflammation or redness in the genital area.
  • Look out for any changes in behavior, such as excessive licking or discomfort when urinating.
  • If your dog continues to produce abnormal smegma despite regular cleaning, consult a veterinarian immediately.
  • Look for the classic pungent dog smegma smell, a yellow or greenish pus-like substance, which could indicate a bacterial infection.
  • Maintaining a regular grooming routine can help keep your dog healthy and reduce the risk of smegma accumulation and other infections.

Dog Smegma Infection Symptoms

Urinary tract and skin infections,, poor hygiene, and allergies can cause excessive smegma in dogs.

Urinary Tract Infection

A urinary tract infection (UTI) can cause changes in a dog’s smegma. Dogs with UTIs may have more frequent and urgent urination, painful urination, and blood in their urine.

In some cases, the bacteria causing the UTI can spread to other parts of the urinary tract or other organs if left untreated. To diagnose a UTI, your veterinarian will conduct a complete physical examination and perform diagnostic tests such as a bacterial urine culture.

Treatment for UTIs typically involves antibiotics and medication prescribed by your veterinarian. Also important are supportive care measures such as increasing water intake and avoiding certain foods that can irritate the urinary tract.

Injury & Hygiene

Excessive smegma in dogs can be caused by poor hygiene or injuries. If a dog’s penis sheath is not cleaned regularly, it can lead to dead skin cell buildup, contributing to smegma production.

Injuries such as bites or scratches near the genital area can cause inflammation and increase smegma production. In addition, if an injury occurs in the genital area, it should be treated promptly to avoid further complications.


Allergies are one of the most common causes of excessive smegma in dogs. Some dogs produce excess smegma when they have issues with contact allergens affecting their skin.

For instance, if a dog is allergic to food or certain types of grass and comes into contact with them, it may develop excessive discharge that could be mistaken for an infection. Allergic dogs can also have thick eye discharge without apparent redness, inflammation, or irritation around their eyes.

glans penis
glans penis

When Is Dog Smegma A Major Concern?

Dog smegma is a major concern when there is foul-smelling discharge, swelling of the sheath, and excessive licking, as these are signs of potential infection.

Foul Smelling Discharge

Foul-smelling discharge from a dog’s penis or genital area can indicate balanitis, an infection of the dog’s penis and the dog’s prepuce.

If there is urine, pus-like discharge, or blood with a foul smell in the discharge, it could indicate an infection that needs veterinary attention. Other symptoms may include excessive licking and swelling around the dog’s genitals.


If you notice any swelling around your pet’s genital area, take action immediately and seek the advice of a veterinarian.

In some cases, swelling may be accompanied by other symptoms such as excessive licking or foul-smelling discharge, which can indicate an infection or inflammation in the dog’s penis sheath or prepuce.

Smegma production is normal in small amounts and is essential in maintaining healthy skin and tissues around the genital area. Excessive buildup can lead to harmful bacteria growth and further complications.

inflamed penis
inflamed penis

Excessive Licking

Too much dog licking can indicate several issues, including infection, injury, or irritation. While some dogs may naturally groom themselves more often than others, persistent licking can signal a problem that requires medical attention. Excessive dog licking may also spread harmful bacteria or other infections.

How To Cure Smegma In Dogs?

To cure dog smegma, clean the genital area regularly with warm salt water and antibacterial wipes, and consider using hydrogen peroxide or other topical treatments as directed by your veterinarian.

How Long Until Dog Smegma Goes Away?

Treating dog smegma depends on the severity of the infection. If caught early and treated properly, it can take a few days to a couple of weeks for the discharge to clear up completely. However, if left untreated or improperly cleaned, it can lead to more severe conditions such as urinary tract infections or inflamed prostate glands.

How Much Smegma Is Normal In Dogs?

Dog owners must know what is normal regarding their dog’s smegma production. A healthy male dog typically produces a small amount of smegma that appears as a bright pink or mucousy material around the dog’s penis and prepuce. However, excessive smegma production indicates prostate abnormalities or bacterial infections.

Why Does My Dog Have So Much Smegma?

An excess amount of dog smegma can be caused by several factors, including allergies, hormonal imbalances, and underlying medical conditions. The presence of an infection or bacteria may also contribute to the production of excessive smegma.

Do Dogs Still Produce Smegma After Being Neutered?

Yes, dogs can still produce smegma after being neutered, although the amount may be reduced. Neutering involves removing the testicles, reducing hormone production, and decreasing the amount of smegma produced.

Preventing excessive smegma buildup through regular cleaning and hygiene practices is more important than trying to eliminate it. Regular bathing and wiping your dog’s genital area with warm salt water or baby wipes can help prevent infections caused by harmful bacteria flourishing in excess smegma.

Will Dog Smegma Go Away On Its Own?

It is natural for dogs to produce smegma. The substance is a lubricant that helps clean and protect the healthy penis from harmful bacteria. The good news is that dog smegma will often go away without intervention. If the symptoms persist, a proper diagnosis from a vet is necessary to determine the underlying cause.

How To Prevent Dog Smegma?

One effective way of preventing a dog smegma infection is by cleaning the genital area regularly using warm salt water or pet wipes.

Can Dogs Get STDs?

Yes, dogs can contract sexually transmitted diseases or infections (STDs/STIs). Common STDs in dogs include brucellosis and canine herpes virus. These diseases are typically spread through mating or other sexual contact with infected dogs.

Brucellosis can also be spread through the ingestion of contaminated food or water. Have your pets regularly tested for STDs/STIs and to practice safe sex by using preventative measures such as neutered dogs and limiting exposure to other potentially infected animals?

Is My Dog’s Private Area Infected?

If you notice any signs of infection in your dog’s private area, such as abnormal discharge, foul odor, or swelling, it’s essential to seek treatment from a veterinarian immediately.

Bacterial infections, bladder stones, and prostate abnormalities can cause infections. A complete physical examination and a more thorough examination of your dog’s abdomen may be necessary to determine the underlying cause of the infection. Your vet may also perform a complete blood count and test for other conditions like blood clotting disorders.

mucous membrane; female dog
mucous membrane

Why Does My Dog Lick His Private Area?

Dogs lick their private area for hygiene and to express their instincts. Licking the genital area is essential to a dog’s grooming routine as it helps remove dirt, bacteria, and dead skin cells.

Dogs also lick themselves because it feels good due to endorphins released during licking. However, excessive licking may indicate underlying medical conditions.

Why Is Blood Always Coming Out From My Dog’s Private Area?

If blood always comes from your dog’s private area, it may indicate an infection requiring immediate veterinary attention. This symptom could indicate inflammation in the bladder, prostate gland, or other tissues near the dog’s genitals.

It could also be due to blood clotting disorders or injuries to the penis sheath. While some degree of normal smegma production and normal discharge may occur in healthy dogs, excess discharge or bleeding should prompt a more thorough examination by a veterinarian.

Why Is My Dog’s Private Area Blocked?

A blocked or obstructed genital area in dogs can happen due to excess smegma buildup, enlarged prostate gland, and bladder stones. Smegma accumulation around the prepuce and penis sheath can clog the opening of the genitals, leading to discomfort for your furry friend.

On the other hand, an enlarged prostate gland or bladder stones can block urine flow through the urethra, causing your dog immense pain during urination and even leading to infections if left untreated.

Why Dog’s Genital Area Is Swollen?

A swollen genital area in male dogs can indicate various health issues, including infections, allergies, or tumors. Inflammation around the penis and prepuce may also cause swelling and discomfort.

Dogs with prostate abnormalities or bladder stones often exhibit a swollen penis sheath. Owners should monitor their dogs closely for signs of swelling in the genital area, like excessive licking or redness.

Suppose swelling persists for over a few days or is accompanied by other symptoms such as foul odor, bloody discharge, or lethargy. In that case, most dog owners, should consult a veterinarian immediately to seek proper diagnosis and treatment.

What Is The Rash On My Dog’s Private Area?

A rash on a dog’s private area is a common symptom of smegma buildup. When left unchecked, dead skin cells and bacteria accumulation can cause inflammation around the genitalia that manifests as redness, itching, or painful sores.

Some dogs may also develop a foul-smelling discharge from their penis sheath. Pet owners need to monitor their dogs’ genital areas regularly and seek veterinary attention if they notice any signs of abnormal discharge or odor.

What Is This Bump, Lump, Or Growth On My Dog’s Private Area?

If you notice a bump, lump, or growth in your dog’s private area, it could be a sign of infection, inflammation, tumors, or other medical issues. These types of symptoms should never be ignored and must be brought to the attention of a veterinarian immediately.

Depending on the severity of the issue and how early it is diagnosed will determine what type of treatment options are available for your pet. Regular checkups with your vet can help catch any potential problems before they develop into more severe conditions.

smegma in dogs
smegma in dogs


How do you treat smegma in dogs?

Smegma is a normal, albeit unpleasant, discharge that can collect around the opening of a dog’s penis. The buildup of dead skin cells, bacteria, and other debris causes it. In most cases, smegma can be easily removed by gently cleaning the area with a warm, damp washcloth.

What causes excessive smegma in dogs?

Several factors can contribute to excessive smegma in dogs, including:

  • Poor hygiene: Dogs not regularly cleaned around the penis are likelier to develop smegma buildup.
  • Infection: Bacterial or fungal infections can cause inflammation and irritation of the penis, leading to increased smegma production.
  • Prostate problems: Enlarged or cancerous prostate glands can cause excessive smegma production.
  • Medications: Some medications, such as steroids, can increase the risk of smegma buildup.

Do all male dogs have smegma?

Yes, all male dogs have the potential to develop smegma. However, it is more common in unneutered dogs. This is because the testicles produce hormones that can stimulate smegma production.

Will neutering a dog help with smegma?

Yes, neutering can help reduce the amount of smegma a dog produces. This is because the testicles no longer produce hormones that stimulate smegma production.

How do I know if my dogs Weiner is infected?

If your dog’s penis is red, swollen, or has an odor, it may be infected. Other signs of infection include:

  • Pain or discomfort when urinating
  • Difficulty urinating
  • Blood in the urine
  • Swelling or discharge from the penis

If you notice any of these signs, seeing a veterinarian as soon as possible is important.

Author Profile

Shradha Kabra
Shradha KabraLifetime dog Enthusiast
Shradha is a seasoned writer at, an authoritative resource for all things Labrador Retriever. Her experience as a pet owner and dog enthusiast drives her to create meticulously researched and fact-checked content, offering valuable insights on Labrador training, grooming, and health. Each article reflects Shradha's passion and dedication, enriched by personal experiences with her beloved Labradors, Tom, and Kurt. Whether exploring breed-specific training techniques or providing product reviews, Shradha ensures Labrador owners receive the most accurate, up-to-date, and trustworthy information, aimed at enhancing their companions' health and happiness