My senior dog has a lump, losing weight, bloody stool, and is lethargic.

Thanks for using Petco Pet Education Center, formerly Petcoach! The urinary tract symptoms you describe could be due to a urinary tract infection, urinary stones, a tumor, among other possibilities. Diarrhea can be observed with conditions such as colitis, gastroenteritis, dietary indiscretion, intestinal parasites, among many other possibilities. I recommend that you have Peach evaluated by your veterinarian for further assessment and treatment. Further diagnostics would include abdominal imaging and lab work. Treatment would be based on findings. Good luck and have a great day!

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.

I would recommend that Linda see a vet. The lump may or may not be related to her other signs but vomitting and diarrhea with lethargy can become serious quickly in small breed dogs. Blood in her stool and brown vomitus indicates bleeding in her GI tract so she may be at risk of anemia as well as dehydration. She should be seen asap if she is still vomitting or lethargic and depressed. And mammary cancer is more likely to occur in unspayed females so the lump should be checked out as well. I hope Linda is feeling better soon.

Poor Luna! She could have an infection (parvo, etc) or a parasite. Since she has bloody stool and is lethargic, she should be examined by a vet to determine the cause and treat. Your vet can test a stool sample to help diagnose and then prescribe medications to treat the problem. She might also need some fluids to prevent dehydration. Hope she gets better soon!

Blood in faeces can be due to many disorders. It can be due to inflammation due to eating something off, ranging all the way to more serious issues such as tumours of the gut. Due to the many possibilities it is imperative to have the dog examined by a vet. This is the quickest and most reliable way to get to the bottom of what is going on. Hopefully it will be something fairly straightforward.

Please have her checked by your vet as soon as possible. This is not normal and although any lumps are concerning, any that are painful or rapidly growing are very suspicious for underlying issues such as cancer. Early diagnosis and treatment is vital to improve outcomes and reduce undue pain and discomfort.

Thanks for using Petco Pet Education Center, formerly Petcoach! It is hard to know for sure just based on a description. This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by a veterinarian for further assessment and treatment as soon as possible as his weight loss and blood loss are quite concerning. I am really hoping for something benign. Good luck and have a good day!