My dog has nipple black spots, a lump, and won't eat or drink.

It does sound like Pepper is sick. This large lump on her side could be an abscess, cyst, benign tumor, or a malignant tumor. An abscess or malignant tumor would cause her to not want to eat or drink. It is serious that she doesn't want to drink, and I would take her into a vet now. If you wait until morning, she could become seriously dehydrated, and it's best to prevent that. The vet can examine the lump and can perform a test called a fine needle aspirate on it to diagnose it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. The vet will also likely do routine blood tests and a urinalysis to diagnose why she is feeling so poorly, and how best to treat her.

I would recommend that you have Shanova Maye checked out by a vet. Dogs can get mammary (or breast) cancer and it can look lumpy or cystic. Some types of cancer are metastatic and can make the dog very ill. There are lots of other causes for her poor appetite, including stress, dietary intolerance or indiscretion, intestinal parasites, GI blockage, gastroenteritis, bacterial or viral infection, IBD, pancreatitis, among others. Your vet will do a thorough physical exam and may recommend diagnostics such as bloodwork and x-rays so they can get a complete picture of would could be ailing Shanova.

As for the bump, my biggest concern would be an enlarged lymph node and mammary cancer. The black stool, lethargy, and thirst are suggestive of bleeding in the intestines. Since she is not spayed, a pyometra would also be a possibility. You need to get her to a veterinarian as soon as possible for bloodwork and abdominal x-rays or ultrasound.

Since she is not spayed and has gone through heat cycles, she is at a higher risk of mammary cancer. These usually are nodules you can feel along the mammary chain. I would have your vet take a look at the black spot on her nipple. You can always upload up to 3 pictures when submitting a question also. Just from finding a black spot on her nipple or even if you feel a nodule or two along her mammary chain at this point if she is doing well I would not recommend putting her down. Thank you for using Petco Pet Education Center, formerly Petcoach.

I see that Jessabell isn't spayed. Unfortunately in unspayed females, mammary tumors are common and that is what could be causing her nipple to look weird. Mammary tumors in dogs have a 50% chance of being malignant, so I would recommend having her seen by a vet for it. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Should she have a mammary tumor and it's malignant, it will need to be removed surgically and local lymph nodes should be checked to see if it has been spread. I would have Jessabell seen by a vet tomorrow to have her nipple looked at so it can be treated as needed.

There are a couple of things that could be wrong with your dog. She could be pregnant causing her swollen nipples and making her feel ill. It could be that she has mammary tumors also causing these symptoms. If she had puppies recently, she could have mastitis (an infection of the mammary glands). Finally, she could have a pyometra which is an infection of the uterus that is fatal without treatment. Because both mastitis and a pyometra are fatal without treatment, and since I can't see her in person to rule them out, I think it's best that she sees a vet right away. The vet can diagnose what is causing these symptoms and the best way to treat her. Please take her into a vet now. Best of luck.

This is very concerning as PU/PD (drinking and urinating more than usual) and not eating, especially in an older intact female can be a sign of a uterine infection , which in turn can be life threatening. I strongly recommend you have Darla examined by your veterinarian. Your vet will want to do some blood work and possibly x-rays to see whether her uterus is filled with pus.