Your coworker comes back after two days off and says, quietly, that they had to put their dog down. There's a pause. You say "Oh no, I'm so sorry," and then you stand there, afraid that anything you add will be the wrong thing.
When someone's pet dies, the words that help most are simple: say you're sorry, say the pet's name, and then let them talk. You don't need to fix anything or find a bright side. Below are things to say in person, by text, and on the phone, all written for this guide, plus the phrases that tend to sting, and how to keep showing up after the first week.
If you only remember one line: "I'm so sorry about [name]. Do you want to tell me about them?"
Why your words matter here
Losing a pet can hurt as much as losing a person, and for some people more. In a 2026 study of a nationally representative sample of UK adults, among people who had lost a pet, almost all had also lost a person, and 21% chose the death of their pet as their most distressing loss. The same study found that long-lasting, disabling grief after a pet's death was about as common as after many kinds of human loss.
Grieving owners notice who takes it seriously. The Ohio State University Veterinary Medical Center's pet loss guide even advises them to minimize contact with those who you know will not understand your loss. A few kind words can make you one of the people they feel safe with.
What to say right away
- "I'm so sorry about Bella."
- "I know how much you loved him."
- "That's a huge loss. She was part of your family."
- "I don't really know what to say, but I'm here."
- "Do you want to tell me about her?"
It's okay to admit you don't have the right words. Honest and a little clumsy is far better than saying nothing.

What to text when someone's pet dies
A text is a good choice if you aren't close, or if you heard the news secondhand. Keep it short and take the pressure off a reply.
- "Just heard about Toby. I'm so sorry. No need to answer, just thinking of you."
- "Thinking of you and Mabel today. She was such a sweet girl."
- "I'm so sorry. If you ever want to share pictures of him, I would love to see them."
- "I'm going to the store tomorrow. Can I drop anything off? Totally fine to say no."
Avoid a string of crying emojis on their own. A sentence with the pet's name means more.

What to say on the phone
On a call, your main job is to listen. Pauses are fine. You don't have to fill them.
- "I just wanted to hear your voice and tell you I'm sorry."
- "Do you want to talk about her, or would it help more to talk about something else for a while?"
- "What was he like when he was young?"
- "That sounds so hard. I'm really glad you told me."
If they start telling a funny story, laugh with them. The American Veterinary Medical Association encourages grieving owners to talk about the fun times you and your pet spent together, not only the sadness. You can make room for that.

What to say in person
Face to face, your presence says most of it. Sit down. Use the pet's name. If they cry, let them, and don't rush to cheer them up.
- "I keep thinking about how she used to wait for you at the window."
- "You gave him such a good life."
- "Can I bring dinner on Thursday?"
- "Would it help if I came with you to pick up his ashes?"
A specific offer is easier to accept than "Let me know if you need anything," which leaves the grieving person to come up with a task. Walking their other dog, taking the kids for an afternoon, or helping put away the food bowls are all real help.
What not to say when someone's pet dies
- "It was just a pet." Their grief is real, whatever the species.
- "When are you getting another one?" The Ohio State guide reminds owners that you will never replace the one you've lost. Whether and when to bring home another animal is up to them.
- "At least it wasn't a person." Comparing losses makes theirs smaller.
- "Did you try...?" or "Couldn't the vet have caught it?" They are likely asking themselves those questions already.
- "Everything happens for a reason." It can feel like being told to stop being sad.
- "I know exactly how you feel." Try "I remember how awful it was when we lost our cat" instead, and then turn it back to them.
If you already said one of these, it's not too late. "I'm sorry, that came out wrong. I know how much he meant to you" goes a long way.
After euthanasia or a sudden death
If your friend chose euthanasia, they may be carrying a lot of doubt. The AVMA notes that owners may feel guilty for making the decision for euthanasia too soon or too late, even when they did everything they could, and that this kind of doubt is common and normal. Don't weigh in on the decision. Speak to the love behind it: "You were there for her when it mattered most."
After an accident or a sudden illness, the shock can be as hard as the sadness. "I can't believe it. I'm so sorry" is enough. Leave the details for them to share if they want to.

Keep checking in after the first week
Grief doesn't follow a schedule. The AVMA says that everyone experiences grief differently, at a different pace, and that sad feelings can come back even after acceptance. So the second and third message matter too.
- A few weeks later: "I was thinking about Rosie today. How are you doing with it?"
- On a date that may be hard, like the pet's birthday or the day they died: "I know today might be a tough one. Thinking of you and Duke."
- When you see something that reminds you of them: "Saw a corgi at the park chasing leaves and thought of Waffles."
If your friend made a memorial page for their pet on Porchlight, you can leave a message or light a candle there, any time. And if you'd rather write it down, our guide on what to write in a pet sympathy card has messages for every situation.
If you're worried about them
Most people find that grief softens with time. But if your friend's sadness isn't easing after several weeks, or it's getting in the way of work, family, or daily life, the Ohio State guide suggests reaching out for more professional support. You can gently pass along our guide to free pet loss support, which lists hotlines and groups, including some they can reach tonight.
If they have thoughts of not wanting to live, they can call or text 988 any time, day or night. Call 911 if they are in immediate danger.

You don't have to get it perfect
Your friend probably won't remember your exact words. They will remember that you said their pet's name, that you didn't rush them, and that you checked in again later. If you want to understand more about why this kind of loss runs so deep, read why losing a pet hurts so much.
Saying "I'm so sorry about Bella" and meaning it is already the right thing to say.
If this helped, you can pass it on to someone who is grieving.
Keep reading
- 2026-11-04
What to Write in a Pet Sympathy Card: Messages for Every Situation
The card has been on your counter for two days. Short messages for every situation, from a sudden loss to a child's first pet, and what to leave out.
- 2026-11-04
How to Write a Pet Obituary, With Dog Obituary Examples
You type their name and the cursor just blinks. Seven small questions that turn into a first draft, plus three dog obituary examples and one for a cat.
If you are thinking about harming yourself, call or text 988 in the US, any time.