Title: Why Does My Dog Have White Stuff Coming Out of His Weiner?


As pet owners, we are often concerned about our furry friends’ health and well-being. When we notice unusual symptoms or behaviors, it’s natural to feel worried and seek answers. One such concern that dog owners may encounter is the presence of white stuff coming out of their dog’s penis, also known as the “weiner.” In this article, we will explore the possible reasons behind this issue and provide some helpful FAQs and answers to address your concerns.

Possible Causes:

1. Normal physiological response: Dogs, like other mammals, produce a white, semi-translucent fluid called pre-ejaculate. This fluid can be released during arousal or mating.

2. Urinary tract infection (UTI): A UTI can cause increased mucus production, leading to discharge from the penis. Additional symptoms may include frequent urination, blood in urine, or discomfort during urination.

3. Balanoposthitis: This condition refers to inflammation or infection of the penis and prepuce (foreskin). It can cause discharge, redness, swelling, and discomfort.

4. Prostate issues: An enlarged or infected prostate gland can lead to discharge from the penis. Other symptoms may include difficulty urinating, blood in urine, or lethargy.

5. Allergic reaction: Dogs can develop allergies to certain substances, including food, environmental factors, or hygiene products. Allergies can result in inflammation and discharge.

6. Trauma or injury: Any injury to the penis or surrounding area could cause inflammation and discharge.

7. Canine herpesvirus: In rare cases, this virus can cause reproductive issues in dogs, including discharge from the penis. Other symptoms may include infertility or miscarriage in female dogs.

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8. Excessive licking: Dogs instinctively groom themselves, and excessive licking of the genital area can lead to irritation, inflammation, and discharge.

9. Sexual arousal without mating: Dogs can become sexually stimulated without mating, leading to pre-ejaculate discharge.

10. Ingestion of foreign objects: If your dog has ingested a foreign object, it may cause irritation or blockage, resulting in discharge.

11. Tumors: In rare cases, tumors in the reproductive or urinary system can cause abnormal discharge.


1. Is white discharge from my dog’s penis normal?
Yes, it can be a normal physiological response during arousal or mating.

2. When should I be concerned about the discharge?
If the discharge is excessive, foul-smelling, or accompanied by other symptoms like pain or discomfort, it’s best to consult a veterinarian.

3. Can neutered dogs still have discharge?
Yes, neutered dogs can still produce pre-ejaculate fluid, but it should be less frequent.

4. How can I tell if it’s an infection?
Look for accompanying symptoms like frequent urination, blood in urine, or signs of discomfort.

5. Can allergies cause this issue?
Yes, allergies can cause inflammation and discharge in the genital area.

6. Should I clean the discharge?
Keeping the area clean is important, but consult your vet for proper cleaning techniques and recommendations.

7. Can this issue be transmitted to other dogs or humans?
Most causes of genital discharge in dogs are not transmissible to humans, but it’s always best to consult a veterinarian for a definitive answer.

8. Can this issue be prevented?
Maintaining good hygiene, regular vet check-ups, and addressing any underlying health conditions can help prevent or manage this issue.

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9. How is a urinary tract infection diagnosed?
Your vet may perform a urinalysis and possibly a urine culture to diagnose a UTI.

10. How can I treat my dog’s discharge at home?
It’s crucial to consult a veterinarian for an accurate diagnosis and appropriate treatment plan. Home remedies may aggravate the condition or mask underlying issues.

11. When should I seek veterinary care?
If you notice any concerning symptoms, changes in behavior, or if the discharge persists or worsens, it’s best to seek professional veterinary care.


While it’s normal for dogs to have a certain amount of discharge from their penis, persistent or abnormal white stuff should not be ignored. Understanding the possible causes and seeking veterinary advice can help ensure your dog’s health and well-being. Remember, your veterinarian is the best resource to diagnose and treat any concerns related to your dog’s reproductive or urinary health.