When Is It Time to Put Your Dog or Cat Down? A Quality-of-Life Guide

How to tell when it's time to put your dog or cat down: the quality-of-life scale, emergency signs, the appointment, costs and grief support.

Quick answer: It may be time to consider euthanasia when your dog or cat's pain, labored breathing, poor appetite or loss of mobility can no longer be controlled with treatment, and they can no longer enjoy the things they love. A practical way to see it: mark each day good or bad for one to two weeks. When bad days consistently outnumber good ones despite medication and supportive care, talk it through with your vet. Struggling to breathe, collapse or a seizure lasting 5 minutes or more means an emergency vet now.

This guide is general information and support, not a diagnosis. Your veterinarian, who knows your pet, is the right person to help you decide.

When to Go to an Emergency Vet Now

Some changes are emergencies, not slow decline. If your pet has any of these, go to the nearest emergency animal hospital now and call them on the way:

• Struggling to breathe, open-mouth breathing (especially in a cat), or a resting or sleeping breathing rate consistently over 30 breaths a minute together with weakness or other signs. A rising resting rate on its own still needs a call to your vet today.
• A cat straining in the litter box and passing little or no urine, or crying, restless or hiding with a painful belly.
• A seizure lasting 5 minutes or more, or two or more seizures in 24 hours.
• Sudden paralysis or pain in a cat's back legs, which can be a blood clot.
• Pale or white gums, a weak or racing pulse, collapse, loss of consciousness or heavy bleeding.

Pain that medication no longer controls, or a pet that suddenly cannot get up, eat or drink, needs an in-person exam the same day, at your regular vet or an emergency hospital. A video call is not enough.

To count breaths, watch your pet's chest while they rest or sleep, count for 30 seconds and double it. A normal resting rate for dogs and cats is about 15 to 30 breaths a minute.

The Quality-of-Life Scale

One of the best-known tools is the HHHHHMM scale, written by veterinary oncologist Dr. Alice Villalobos. It is not a test with a right answer. It is a structured way to look honestly at your pet's days and to start a conversation with your vet. Score each item from 0 (worst) to 10 (best):

Item	Ask yourself	What to watch for
Hurt	Is pain controlled? Is breathing easy?	Dogs: panting or restless at rest. Cats: squinting, hunched, hiding
Hunger	Eating enough on their own?	Skips meals, eats only when hand-fed or eats less
Hydration	Drinking enough without help?	Drinking and peeing much more, or much less
Hygiene	Clean, with no sores or soiling?	Soiling, sores; cats stop grooming
Happiness	Still enjoys family and favorite things?	Withdrawn, ignores favorite things or people
Mobility	Can they get up without help?	Dogs: can't stand or slips. Cats: won't jump up
More good days	Do good days outnumber bad?	Track for 7 to 14 days

The maximum is 70. Dr. Villalobos describes a total above 35 as acceptable for comfort-focused care. A total at or below 35 is not a verdict; it is a sign to talk with your vet soon about pain control, comfort care and what comes next. One score on one day matters less than the trend over several days.

Why cats are harder to read

Cats are experts at hiding pain. In older cats, one of the most common pain-related changes is a drop in grooming. Others include no longer jumping onto furniture or windowsills, going to the litter box but not into it, hiding when guests visit if that isn't usual for your cat, lying in one spot for longer, and being slow to get up or lie down. Because many cats also hide nausea until a disease is advanced, small changes deserve attention. Our guides on how to tell if your cat is in pain and how to tell if your dog is in pain go further.

How to Track Good Days and Bad Days

Decisions are clearer when you can see a pattern instead of reacting to one hard night. Ohio State's veterinary medical center and Lap of Love, a national network of end-of-life vets, suggest these tools:

• A calendar: mark each day good, in-between or bad. A happy or sad face is enough. In serious illness, 7 to 14 days usually shows the trend.
• A regular check-in: score the quality-of-life scale on a fixed schedule, such as every three days or every Tuesday.
• Everyone scores separately: ask each family member to fill it out on their own, then compare.
• A favorites list: write down three to five things your pet loves. When they consistently can't enjoy them, it is time to talk about euthanasia.
• Old photos and videos: slow decline is easy to miss day to day. Looking back can show how much has changed.

The AVMA suggests asking yourself: Is my pet suffering? Does my pet have more bad days than good? Do they still enjoy what they normally do? What are the chances of recovery? Will they need care I can't provide or afford? It also suggests agreeing with your vet ahead of time on which signs will mean it is time, so you have guardrails when emotions are high.

A common question is whether to wait until a pet stops eating. Appetite matters, but many pets eat a little while still suffering, so it should not be the only sign. See what to do when an old dog stops eating.

What Decline Often Looks Like

Every pet is different, but some illnesses follow familiar patterns. These are signs worth raising with your vet. If any of them comes on suddenly or severely, such as labored or open-mouth breathing, pale gums or back-leg paralysis, treat it as an emergency (see the list at the top of this page):

Condition	Signs that matter
Arthritis and mobility loss	Struggling to stand, slipping or splaying, trouble with stairs, slowing on walks, weight gain, sometimes with muscle loss over the legs and spine
Kidney disease (common in older cats)	Drinking and peeing more, then lethargy, an unkempt coat, weight loss, poor appetite and pale gums
Cancer	Labored breathing, no appetite, restlessness or trouble sleeping, moaning, being unable to pee or poop, or too weak to move away after going
Heart disease	Fast or labored breathing at rest, open-mouth breathing (cats), lethargy, sudden back-leg weakness or paralysis in cats
Dementia (cognitive dysfunction)	Pacing and waking at night, crying at night, getting lost at home, house soiling, new anxiety

Kidney disease shows how variable the course can be. Cornell's Feline Health Center reports that it affects up to 40% of cats over 10 and 80% over 15, and that cats diagnosed at the most advanced stage (IRIS Stage 4) survive less than six months on average, while those diagnosed at Stage 2 have an average survival of two to three years in many studies. Averages are not predictions for your cat. For dogs with nighttime confusion, see our guide to dog dementia and sundowning.

Palliative Care, Hospice and Euthanasia

These words are often used together, but they mean different things. Under the AAHA and IAAHPC end-of-life care guidelines:

• Palliative care relieves suffering and supports quality of life for the pet and the family, whether or not the illness can be cured.
• Hospice runs from a terminal diagnosis until death, whether by euthanasia or a hospice-supported natural death.
• Euthanasia is a medically guided, peaceful death using methods designed to cause minimal pain, discomfort and anxiety.

The guidelines describe both euthanasia and a hospice-supported natural death as medically and ethically acceptable, and they say vets should recommend euthanasia when comfort care can no longer meet a pet's physical, social or emotional needs. Ohio State's view is that only a small share of pets have a peaceful death without help, because dying can bring anxiety, breathing trouble, nausea and seizures, though AAHA notes there is little research on what animals experience when they die without euthanasia. Comfort care at home, such as soft bedding, traction rugs, a support harness, and keeping your pet clean and warm, can give your pet more good days. Talk with your vet about pain control and what the next weeks may look like.

How a Vet Can Help You Decide, Including by Video

You do not have to make this decision alone, and you do not have to wait for a crisis to talk about it. A quality-of-life conversation with a vet can help you understand your pet's illness, score the scale together, plan comfort care and agree on the signs that will mean it is time.

A video visit can make that conversation easier. A fragile pet avoids the car ride and the waiting room, and the vet can watch your pet stand, walk, breathe and eat on camera and review records you share from your regular vet. It has clear limits: a video visit cannot replace a hands-on exam, cannot perform euthanasia, and cannot be used for an emergency. Pain and comfort medications are never guaranteed. Many drugs used in end-of-life care are human-approved or controlled drugs that require an in-person exam, and in Florida a video-only prescription is limited to 14 days of an FDA-approved animal drug used as labeled, with no renewal without an in-person exam. To prepare, see how to share photos and videos with an online vet, and if you want another opinion on a diagnosis, see our guide to an online second opinion.

RexVet is a 501(c)(3) nonprofit with licensed veterinarians for pets in Florida, New York and Virginia. If you live elsewhere, your regular vet or a local end-of-life service can have this same conversation with you. If you would like to talk it through with a RexVet vet, a live video visit is $64.99, and the Family Plan is a one-time $120 for four visits over 12 months, no subscription. Talk it through with a RexVet vet.

What Happens at the Appointment

Knowing what to expect can make the day less frightening. A typical appointment goes like this:

1. Paperwork and time together. Consent forms and payment are often handled in advance so you are not dealing with them at the end, and you can ask for time alone with your pet before the vet begins. Decide on burial or cremation beforehand if you can.
2. Sedation. The AVMA recommends sedation or anesthesia first, especially when family is present. It eases anxiety and pain. The trade-offs are small: it adds some cost, pets respond to it a little differently, and some pets vomit.
3. An IV catheter, usually in a leg, so the final medication can be given smoothly. Many teams keep you with your pet throughout.
4. The final injection. Your pet becomes deeply and permanently unconscious within seconds, and death is quick and painless. The vet listens to confirm the heart has stopped.

Afterward, the legs or head may move, or your pet may take a few deep breaths. These are reflexes, not signs of pain. Take as much time with your pet as you need.

Whether you stay is your choice. Some people hold their pet throughout; others say goodbye beforehand and step out. The guidelines say you should never be made to feel guilty either way. A last evening at home, extra petting and grooming, or a favorite meal or walk (check food with your vet if your pet has stomach problems) can be a gentle goodbye.

At Home or at the Clinic

At-home euthanasia spares a frail pet the car ride and lets them stay somewhere familiar. It gives you more privacy, lets more family be present and usually feels less rushed. A clinic visit usually costs less. Either way, sedation can be given first. If you choose home, arrange transport and aftercare ahead of time. Organizations that focus on end-of-life care, such as Lap of Love, offer home visits in many areas.

What It Costs

Prices vary widely by region, clinic and the pet's size. These are examples, not quotes:

Service	Typical cost	Source
Euthanasia at a clinic (dog)	About $100 to $250; average about $120 to $130	National estimate (PetMD, 2025)
Euthanasia at home (dog)	About $350 to $900; average about $450	National estimate (PetMD, 2025)
Home visit example	$465 (Louisville) to $530 (Chicago), with sedation and a paw print; aftercare extra	Lap of Love, Louisville and Chicago
Nonprofit clinic example	$60 cat, $100 dog	Cleveland Animal Protective League
Communal cremation	From about $50	National estimate (PetMD, 2025)
Private cremation	From about $100, more for larger pets	National estimate and Cleveland APL

Ask your clinic for a full price that includes sedation, aftercare and any keepsakes such as paw prints. Pet insurance coverage depends on the plan: Embrace, for example, says euthanasia can be eligible under an active accident-and-illness policy when it is done for humane reasons for a covered condition, but its core policies do not cover cremation. Check your own policy.

Talking With Children and Other Pets

With young children, avoid saying a pet is being "put to sleep." Children may take it literally and become afraid of sleep or of having surgery. Use simple, honest words such as "die" or "help him die peacefully." If children will be there, prepare them first. Ohio State suggests something like this, using your pet's name: "The vet is going to give Buster medicine in a shot that will make his heart stop and his breathing stop. It will not hurt him."

Some families find that other pets settle better when they can see and smell the pet who has died. Their reactions are hard to predict, and sniffing, nudging or vocalizing are normal.

Guilt, Grief and Support

Doubt is normal. Studies cited in the AAHA guidelines found that about 30% of pet owners experience significant grief after a pet's death, and half of those who choose euthanasia later question their decision. Ohio State's team says many families tell them they waited too long, and very few say they decided too soon. Second-guessing does not mean you chose wrongly; it means you cared.

Cornell University's Pet Loss Support Hotline, staffed by trained veterinary students, is at 607-218-7457; hours vary by season, so call to check. It is not a crisis line. If you are in crisis, call or text 988, or call 911.

Frequently Asked Questions

How do I know it's time to put my dog down?

Consider it when pain, breathing problems, poor appetite or loss of mobility can no longer be controlled, and your dog can no longer enjoy the things they love. Track good and bad days for one to two weeks; when bad days consistently outnumber good ones despite treatment, talk with your vet.

What is the HHHHHMM quality-of-life scale?

It is a scale written by veterinary oncologist Dr. Alice Villalobos. You score Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility and More good days than bad from 0 to 10 each. A total above 35 out of 70 is considered acceptable for comfort-focused care. It is a conversation tool, not a verdict.

How can I tell if my cat is suffering?

Cats hide pain well. Watch for less grooming, no longer jumping up, hiding, lying in one place for longer, litter box changes and eating less. Open-mouth breathing, straining with no urine or sudden back-leg weakness are emergencies.

Does euthanasia hurt?

No. Most vets give a sedative first, and the final medication makes a pet deeply unconscious within seconds. Death is quick and painless. Movements or deep breaths afterward are reflexes, not pain.

Should I stay in the room?

It is your choice, and there is no wrong answer. Many people stay to comfort their pet; others say goodbye first and step out. A good veterinary team will support either choice without judgment.

How much does it cost to put a dog down?

National estimates put clinic euthanasia at about $100 to $250 and at-home euthanasia at about $350 to $900, before cremation. Communal cremation starts around $50 and private cremation around $100. Prices vary by area, so ask for a full quote.

Can a vet help me decide over video?

Yes, for the conversation. A licensed vet can review your pet's records, watch them on camera, score quality of life with you and help you plan. A video visit cannot perform euthanasia or handle an emergency. RexVet's vets see pets in Florida, New York and Virginia.