My dog has a large, sudden lump on her leg. What can I do at home?

Ouch! Definitely something that should be checked out by your regular vet ASAP. Certain types of tumors such as mast cell tumors, hemangiomas, injuries, blood blisters, etc can all appear like this, and so it should be looked at and biopsied to see what is going on. Until you can get to your vet in the morning, keeping Berkeley from licking or chewing on the spot with an Elizabethan (cone) collar is best to reduce any further injury or irritation.

Considering the mass just appeared and she's also lame, I would suspect that it's a fluid swelling due to an injury. It would be best to have her seen by a vet sometime in the next day or two in order to diagnose the specific condition and provide the necessary treatment. For now, you can ice the affected are 2-3 times a day until you are able to see the vet. I hope that helps and Coco gets better soon.

This lump could be a cyst, abscess, lipoma, benign tumor, or a malignant tumor. Any suspicious lumps should be examined by the vet. 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 its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give her vet a call in the morning to make her an appointment. Best of luck.

This could be a seroma from an injury, a cyst, abscess or a tumor. Cysts and abscesses need to be drained by a vet. If your vet suspects a tumor, he will do a fine needle aspirate to determine whether it is a harmless lipoma, which does not need to be removed unless it is ulcerating or bothers the dog due to its location or size, or another tumor that needs to be removed. Please make an appointment with your veterinarian for an exam of the mass.

Without a physical exam or diagnostics, it is difficult to determine if this is something to worry over. Ideally, a fine needle aspirate or biopsy should be done to collect samples for pathology. This may provide a diagnosis. X-rays of the limb may be recommended to rule out bony involvement. Since you state it is growing, it should be removed before it becomes too large. As it is, that is a difficult area to close after a mass removal.

That is a large, lobulated lump (no just one defined lump) in a location that would generally never have something like a swollen lymph nodes. I recommend making an appointment with your vet for a fine needle aspirate (where they aspirate cells from the mass and put them on a slide to be sent out for review) to determine if it is an abscess or a tumor/cancer of some sort. Best wishes for Diesel!

Thank you for submitting your question regarding Sage. Her mobility issues are most likely untelated to the new bump. She may be experiencing an exacerbation of age related arthritis if she fell a bit from the vehicle. This could make her very sore. Keep her quiet and do not give any over-the-counter pain medications as these can be toxic to dogs. She will need to see her veterinarian for an exam and possibly x-rays. Pain medication will likely be prescribed as well. The mass can be evaluated as the same appointment. A procedure known as a fine needle aspirate is commonly performed. The veterinarian will collect a small sample of cells to evaluate under the microscope. This will let you know if the mass is cancerous or not. It is a rare for a mass to affect mobility, but it is possible. I hope this information helps!