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What happens if the dog that bit you has no known owner? You still get medical care first, tell your doctor the dog is unknown, and report the bite to animal control. Doctors and hospitals must report bites within 24 hours. A biting dog is quarantined for 10 days. If it can't be found, your doctor will discuss rabies treatment.
It can happen fast. You are walking on a side street in Andover, or on a trail near Harold Parker State Forest. A dog bites you. Then it runs off, or the person holding the leash walks away. No tag. No name. Now you have a wound and a lot of questions.
This guide covers what to do next and what Massachusetts law says about a bite from a dog with no known owner. Kiley Law Group has helped injured people in Andover and across the Merrimack Valley for more than 50 years. If you want to talk it over, call 888.733.9203 for a free consultation.
| Step | Who | When |
|---|---|---|
| Get medical care and tell the doctor the dog is unknown | You | Right away |
| Report the bite to the town animal inspector | Your doctor or hospital, and you can too | Within 24 hours |
| 10-day rabies quarantine of the dog | Animal control | 10 days, if the dog is found |
| Decide on rabies treatment | You and your doctor | If the dog can't be found |
| File a lawsuit, if you have a claim | You, with an attorney | In most cases, within 3 years of the injury |
Wash the wound with soap and water, even if it looks small. Dog bites can get infected, and deep punctures can hide damage. If the bite is deep, won't stop bleeding, or is on the face, hands, or a child, go to an emergency room such as Merrimack Health Lawrence Hospital. For smaller bites, your own doctor or an urgent care works.
Tell the provider two things right away: you don't know who owns the dog, and you don't know if it had rabies shots. Then ask, "Do I need rabies treatment?"
Rabies is rare in pet dogs, but it can be deadly if it goes untreated. Boston's public health commission says it is preventable with prompt treatment. In the U.S., that treatment is one dose of immune globulin and four doses of rabies vaccine over about 14 days, with the first doses given as soon as possible after the bite. Your doctor makes that call. This is general information, not medical advice.
Massachusetts law (M.G.L. c. 112, § 12Z) says a doctor who treats a dog bite, or the hospital where it is treated, must report it within 24 hours to the inspector of animals in the city or town where the bite happened. You can report it too, and you should not wait for someone else to do it.
In Andover, the state's list of municipal animal control officers shows an officer at 32 North Main Street, phone 978-623-3527. That list is dated December 2023, so call first or check the town website. If the bite happened somewhere else, report it to that town.
The state's bite report form asks for the owner's name if it is known. If the dog is unknown, it asks where the animal was last seen. So give animal control every detail you can:
If the dog was loose where leashes are required, say so. Harold Parker State Forest, for example, requires dogs to be on a leash of 10 feet or less.
Key point: The 10-day quarantine only works if animal control can find the dog. That is why reporting the bite quickly matters.
Under the state's rabies protocol for dogs and cats that bite humans, a dog that bites or scratches a person is placed under a 10-day quarantine, even if it has had its shots. Most of the time the dog stays at the owner's home. At the end of the 10 days, animal control checks on it. If the dog is healthy, town guidance says it could not have passed rabies to the person at the time of the bite.
Then the quarantine can't happen. Town animal control guidance says that if the biting dog is not identified and quarantined, the person who was bitten should move forward with rabies treatment as a precaution. Your doctor makes the final call. Doctors can also call the state's epidemiology line, which answers rabies treatment questions around the clock and is listed on the state's bite report form.
This is why a fast report helps. The sooner animal control hears about the bite, the better the chance they find the dog and start the 10 days.
You don't need to play detective. A few simple steps can help:
If you find a name, give it to animal control. Let them handle contact with the owner.
The Massachusetts dog bite law is M.G.L. c. 140, § 155. It makes the owner or keeper of a dog responsible for the harm the dog causes. There are limits. The law does not apply if the injured person was trespassing, committing another tort, or teasing, tormenting, or abusing the dog. A child under 7 is presumed not to have done those things.
The word "keeper" matters. It can reach a person who was looking after the dog, not just the person whose name is on the license.
That is why finding the owner or keeper matters so much. When no owner or keeper can be found, a claim against them may not be possible, and what other options exist depends on the facts of what happened. A dog bite attorney can look at your situation.
In most cases, you have three years from the date of the injury to file a lawsuit in Massachusetts. Evidence fades well before that, so start documenting now.
Being bitten by a dog you can't identify is stressful. You are hurt, and you don't know who is responsible.
At our Andover office at 342 N Main St, we look at dog bite claims for people across the Merrimack Valley. We can talk through whether an owner or keeper can be identified, what to ask animal control, and what your options may be. Read more about dog bite claims at Kiley Law Group. To see how a bite on someone else's property is handled, read our post on dog owner vs. property owner liability. For a general checklist, see steps to take after a dog bite.
Call 888.733.9203 to talk it over.
The 10-day rule means a dog that bites or scratches a person in Massachusetts is quarantined for 10 days, even if it has had its shots. Animal control checks the dog at the end. If it is healthy, it could not have passed rabies during the bite.
State rules require dog bites to be reported to local animal control. Your doctor or the hospital must make a report within 24 hours, and you can report it yourself too.
Get medical care, then report the bite to animal control in the town where it happened. The state's list of municipal animal control officers shows an Andover officer at 32 North Main Street, phone 978-623-3527. That list is dated December 2023, so call first or check the town website.
The steps are the same. Get care, tell your doctor the dog is unknown, report the bite, and tell animal control where you last saw the dog.
Town animal control guidance says you should move forward with rabies treatment if the dog is not identified and quarantined. Your doctor makes the final decision.
In most cases, you have three years from the date of the injury to file a lawsuit in Massachusetts. Evidence fades well before that, so start documenting now.
Massachusetts law makes the owner or keeper of a dog responsible for the harm the dog causes. When neither can be found, a claim against them may not be possible, and other options depend on the facts. A lawyer can review your situation.
Many dog bite claims are handled through the dog owner's homeowner's or renter's insurance policy. That is one more reason to identify the owner.
You don't have to sort this out alone. Call Kiley Law Group at 888.733.9203 for a free consultation.
This article is for general information only. It is not legal or medical advice, and reading it does not create an attorney-client relationship. Laws change. Massachusetts laws mentioned include M.G.L. c. 140, § 155 and M.G.L. c. 112, § 12Z, and the three-year filing deadline in M.G.L. c. 260, § 2A. Talk to a licensed Massachusetts attorney about your situation.
