Why is my dog's anal mass back with pus and blood after surgery?

From what I can see from the photo I think this looks more like inflammation or infection. Sometimes when dogs have diarrhoea they rub their bums which can lead to raw skin which in turn can become infected. Another possibility is an anal gland infection, these can burst out suddenly. There is always a possibility that it could be a tumour but it doesn't look like the typical tumours you get around the anus. With appropriate treatment an infection should heal within one to two weeks, whereas tumours would require more investigation/invasive treatment. I would chat to your bet about getting some meds for your dog if they haven't been prescribed already. Running bloods would also be prudent and may give further clues to the cause.

This looks like a ruptured anal gland, the medication she is currently on should help to prevent infection but you should have the other gland checked and emptied by your vet or vet tech to prevent the second from rupturing also. As long as the area is kept clean it should heal uneventfully, a high fiber supplement may help in preventing further recurrence

It is hard to tell for sure by the pictures, but my suspicion would be that it is either a perianal tumor that has bled, or potentially a ruptured anal sac abscess. I would highly encourage you to have her evaluated by your veterinarian as soon as possible. If it is an abscess then antibiotics will likely be needed. If it is a tumor then the veterinarian can discuss options with you. Often perianal tumors are benign. I think getting a diagnosis is the first step and then you can gather information and make decisions from there. Best of luck and thank you for using Pet Coach.

You may speak with your veterinarian about a diet trial with a hydrolyzed protein diet for 12 weeks. This will tell you if an allergy is present. If you can;t control it with food, you may look into surgery to remove the glands. I hope this helps.

I am sorry to hear that! It may be that the infection is still going on - you may need a longer course of the antibiotic or perhaps a different one. I would recommend having them expressed again to see if there is still debris present. I would also want to double check and make sure there is not a mass present in the area:( You can ask for a biopsy to be done if the lump seems unrelated to the infection. I hope this helps and that it is nothing more than a persistent infection!

It sounds like your dog has a rectal polyp. This fleshy bit of tissue is likely what is causing the blood you are seeing in the stool. If the treatment your vet prescribed is not working Jaz may need surgery to remove the polyp. Some vets feel comfortable performing this surgery while others may refer you to a specialist for surgery or endoscopy. I would recommend speaking with your vet about a possible referral to have the polyp removed.

Ouch, poor Early! If you are seeing blood and pus along with brown fluid, it sounds like his anal sacs may have become infected and have now ruptured. With the presence of pus, there isn't anything you can do at home for him. I would take him into a vet as soon as possible to have this area cleaned and examined. If his anal sac has ruptured, it will need to be sutured closed and he will need antibiotics for infection.