What causes red bumps on my female dog's vulva and nipples?

Those look like pustules (like pimples). I suggest you use these medicated pads on the vulva once a day for a week or so. If no improvement then have your vet take a look at her. ( https://www.allivet.com/p-5393-douxo-chlorhexidine-3-ps-pads-for-dogs-and-cats-30.aspx?SearchTerm=duoxo%20pad+Auto )

This presentation could be due to a localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. Please find the time to give us a feedback about the consultation as that will be used to improve our service.

Hi there and thank you for using Pet Coach! Based on the photos you provided, the bumps appear to be papules / pustules that indicate a skin infection. This could be from her licking at the area when she was in heat (which is common). I would disinfect the area with and keep clean with a spray called Miconahex. This is a antimicrobial / antifungal spray that can treat superficial skin infections quite effectively. You can find this spray online quite easily. If you begin to notice any irritation after using the spray, discontinue immediately. If the skin condition worsens or does not resolve, I would recommend scheduling an appointment with a veterinarian to have this looked at. Additional medications may be needed to treat this. I hope this helps!

Those black specks are basically blackheads (comedones) and the bump is likely a follicular cyst. Nothing is too worriesome. I would use a Benzoyl Peroxide product like for acne. NOT hydrogen peroxide. I suggest this one. The ones you buy over the counter for humans are not the correct strength. This product is more concentrated. ( http://www.allivet.com/p-7689-benzoyl-peroxide-gel-5.aspx ) If no improvement in about 7-10 days then you should get her to your vet for an exam. Hope this helps. Best wishes.

I am sorry to hear about your dog! These look like they could be pustules, or small spots of bacterial infection, perhaps from some minor trauma to the skin during mating which then became infected with bacteria. I would recommend having your vet examine the area, as they may want to prescribe antibiotics to treat the infection.

Oh great! The picture worked this time. The picture sure looks like pustules, which is what I was describing in my first answer about pyoderma. However, this is not a diagnosis without a veterinarian seeing the patient and perhaps even sampling the bumps to determine what they are. Transmissible venereal tumors are also possible. Best of luck and I hope she improves soon. Thank you for using Pet Coach.

Swollen red bumps on the belly or near the private parts are most often caused by a bacterial skin infection called [pyoderma](https://www.petcoach.co/dog/condition/staphylococcal-pyoderma-1/). This often happens in dogs that have underlying [allergy issues](https://www.petcoach.co/article/food-allergies-vs-environmental-allergies-whats-the-difference) or other skin problems. If the bumps aren't bothering her much and she is acting normal otherwise, you can get a [topical antibiotic spray](https://www.petco.com/shop/en/petcostore/product/vetericyn-plus-wound-and-skin-care-for-dogs) labeled for dogs at Petco or online. Use this on the affected area 2-3 times daily until the bumps are gone. If there is no improvement in the rash in the next 3-5 days, or if she is itchy or painful or having any other symptoms, then I would recommend having her examined by a vet as she may need oral antibiotics or other prescription medication to treat the problem.