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Jane Lefler
Jane Lefler, Breeder,Behaviorist, formerVet Asst
Category: Dog
Satisfied Customers: 19828
Experience:  Former vol Vet Assistant.Breeder 18+ years Dog trainer / behaviorist
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I've just found something on my dogs leg that has me

Customer Question

Hi, I've just found something on my dogs leg that has me concerned. It is about a 1" long by 3/4" wide and about 1/2" in depth. It's like a sack loosely filled with fluid. It appears to have developed quite quickly.
I've taken a photo and uploaded it to
It's a long weekend here so I can't get to a vet for a couple of days.
Any idea what it might be?
Submitted: 2 years ago.
Category: Dog
Expert:  Jane Lefler replied 2 years ago.

Hi JaCustomer,

My name is ***** ***** I’ve been involved professionally with dogs in the health and behavioral fields for over 18 years. It will be my pleasure to work with you today.

Lift it up and see if it is attached by just a small bit of something, and then look for tiny legs near where it is attached. It kind of looks like an engorged tick. If it is, here are instructions on removing it.

You can remove a tick by grabbing it firmly at the head and gently tugging it away using a pair of tweezers until it separates from the bite site. Be sure and grab it at the head to prevent the head and body from separating. If it does separate, don’t worry, your dog’s body will attempt to dislodge it on it’s own. Your vet also has tools that are able to get it out if it really bothers you. Once it is off your dog, you can flush it down the toilet, or burn it. Treat the bite wound with peroxide and Neosporin. There are tick removal tools available on the web, which you may want to look into as they do make it easier to remove ticks.

If it isn't a tick, then it is a growth and you will need to have the vet examine it and possibly biopsy it. A lump may indicate cancer, but many such growths are harmless. Many lumps are not painful or bothersome. It may be a fatty tissue deposit called Lipomas or a wart or a hematoma, but to be positive your vet will need to test the lump to be sure.

Any lump found on your animal should be tested to determine if it is a cancerous or benign lump. Your vet will want to perform a fine-needle aspiration or other appropriate test. It is performed quickly and allows some of the cells of the lump to be evaluated by the veterinary pathologist. This test will allow the vet to determine the nature of the lump and take the necessary steps to remove it. Some vets will leave it alone if it is not serious. If it is an abscess, he may just drain it and prescribe antibiotics. Lumps that are solid feeling, feel attached and fast growing should be checked as soon as possible as these are the ones that are more likely to be serious.

Here are a few sites for additional information and pictures to allow you to get an idea based on the physical characteristics..

It may just be a papilloma as well or wart. You can read more on this here:

Hopefully this gave you some informaiton that will help you decide if a vet visit is in order. Hoping it is just a tick and won't need any further treatment.

I hope this information is helpful to you. If you would like any additional information or have more questions please don’t hesitate to press the reply to expert or continue conversation button so I can address any issues you still have . If you do find this helpful, please take this opportunity to rate my answer.

Customer: replied 2 years ago.
It's definitely not a tick.
Since I sent my question, the sack has deflated quite a bit. I don't see any signs of it having ruptured, or otherwise leaked, externally. The sack itself hasn't decreased in size, it's just half empty now. I have a new photo at,
Expert:  Jane Lefler replied 2 years ago.


Usually a tick would disengage and drop off once engorged. It does look like a wart, but it is difficult to tell just from pictures online. I would go ahead and have your vet take a quick look and do a needle biopsy if he feels it is necessary. Inu is elderly so you may see more such growths as she ages. It is best to get it checked by your vet.