Animal hoarding
It often begins with love for animals. Getting help protects the animals and the person who cares about them.
By the numbers
What research shows about animal hoarding.
The people
The animals
Afterwards
What animal hoarding is
Many animals, and not being able to meet their basic needs.
Animal hoarding means keeping more animals than a person can care for. The animals don’t get enough food, clean space, shelter or vet care, and the person often doesn’t see the harm.
Many people who hoard animals truly believe they are helping or rescuing them. Their love for animals is real, even when the care has become impossible.
Read more
Having several animals does not, by itself, mean someone is hoarding. What matters is whether each animal’s basic needs are being met.
Signs animals are well cared for
- Clean water and enough food every day
- Regular vet care
- Space to move, rest and be clean
- The owner knows each animal and how it is doing
Read more
Like object hoarding, animal hoarding involves great difficulty letting go and strong attachment. But almost every home where animals are hoarded has animal waste in living areas, while squalor is less common with object hoarding.
Experts think animal hoarding may have different causes and need a different kind of help, so a careful assessment matters.
Read more
Large-scale hoarding can happen within rescues or shelters that don’t recognize the harm they are causing.
Why it can happen
Love, loss, early life and a deep need to rescue. Tap any card.
Researchers are still learning why animal hoarding happens. Most think it grows from a mix of attachment, life experiences and how a person sees their animals.
Read more
Many people who hoard animals feel it is their sole responsibility to save animals in need. They may feel a strong urge to take in more to protect them from harm.
Some feel they have a special ability to understand and communicate with animals.
Read more
People who hoard animals more often describe chaotic childhoods and weaker bonds with parents than other pet owners. Researchers think animals may have become a safer source of love.
Animal hoarding is often linked with troubled relationships with people and, frequently, chaotic or traumatic childhoods.
Read more
Some people began gathering animals after a traumatic event or a loss. Illness, money problems or grief can also overwhelm someone who once cared well for their animals.
Read more
In one study, 81% of people who hoard animals described their animals as having human-like thoughts and feelings, compared with 27% of other owners. This can create a heavy sense of responsibility.
Read more
A lack of awareness about the animals’ suffering seems to be part of most, if not all, animal hoarding. The person may keep taking in animals even as their health declines.
Researchers think not seeing it may partly protect the person’s sense of self and self-worth.
Read more
A review of severe animal hoarding found that people were often older and socially isolated. Dementia, OCD and other mental health conditions were among common underlying causes.
An early public health study said animal hoarding may be a sign of mental health problems or dementia that need prompt, caring assessment.
Different paths into it
Researchers describe a few different patterns.
Not everyone who hoards animals is the same. Researchers describe different patterns, and knowing them can help the right kind of support reach the right person.
Read more
These are often lonely people who started out caring well for their animals. Illness, money problems or a loss then made it impossible to keep up.
Read more
Rescuers see saving animals as a mission. They often resist letting animals be adopted and may have a network of people who bring them more animals.
Read more
Researchers describe a smaller group who gather animals mainly for their own needs, such as control, and who show little empathy for the animals.
These situations usually need firm action from animal welfare and legal agencies.
Signs someone may need help
What animal welfare experts look for.
It can be hard to know when a love of animals has turned into something harmful. Animal welfare experts point to a set of signs that, together, suggest help is needed.
Signs to notice
- A home in poor repair, with heavy clutter or very dirty conditions
- Animals that are very thin, tired or not used to people
- Fleas, pests or vermin
- More animals than the person can count
- Not being able to give animals food, a clean space, shelter or vet care
- Signs the person is isolated, not caring for themselves, or declining in health
- Strong smells and floors covered in animal waste
Health and safety for people and animals
Why animal hoarding is a health concern for everyone in and around the home.
Animal hoarding affects the health and safety of people, animals and neighbors. Public health experts describe it as an under-recognized problem found in most communities.
Read more
Animals in these homes often face poor nutrition, overcrowding and dirty conditions. Disease, injury and behavior problems are common.
In the early U.S. study, animals were found in poor condition, or had died, in 80% of cases.
Read more
Most homes where animals are hoarded have unsanitary conditions. Animal waste in living areas is found in nearly all of them.
People in these homes are often isolated and may be neglecting their own health and care.
Read more
Because animal hoarding affects health, safety and the environment, solving it often takes several agencies working together over time.
Leading with compassion
How to talk with someone who may be hoarding animals.
Shame and fear of losing their animals can make people hide or refuse help. Kindness makes it more likely they will accept support.
Read more
Words that can help
- “I can see how much you care about them.”
- “It’s okay to ask for help. Lots of people need it.”
- “The animals need some care right now. Can we get them help together?”
- “I’m worried about you too.”
Read more
People who hoard animals often don’t see the harm, so arguing about it rarely helps. Shame can lead them to hide animals or refuse contact.
Read more
Experts say good help includes mental health and medical care for the person, not just veterinary care for the animals.
Social services such as the local department on aging, adult protective services, health departments and mental health agencies can all help.
How animals get help
Who to contact if animals are suffering.
If animals are suffering, it’s important to get them help. In the U.S., this usually means contacting the agency that enforces animal laws in your area.
Who to contact
- If animals or people are in danger right now, call 911.
- Contact a local hoarding task force, if your area has one.
- Otherwise, contact local animal control, the police, a humane society or SPCA, or a veterinarian.
- If you’re not sure who handles animal laws, ask your local police or animal control.
- Contact social services too, so the person gets support, not just the animals.
Read more
The ASPCA suggests contacting a local hoarding task force first, if one exists. The IOCDF keeps a list of task forces by state and country.
Animal hoarding cases are often complex and may take a long, multi-agency effort to resolve.
Read more
Ideas from the ASPCA
- Help with daily care if animals return home
- Help make sure animals are spayed or neutered and vaccinated
- Stay in touch with the person
- Volunteer at a local shelter with cleaning, walking or socializing animals
After the animals are safe
Why ongoing support matters, for the person and for the animals.
Removing animals doesn’t end the story. Without support for the reasons behind it, animal hoarding often comes back. Across studies, 13% to 41% of people began hoarding again.
Read more
Because the bond with animals is an emotional one, giving them up is very different from letting go of objects. It can bring real grief.
Read more
Experts call for better ways to prevent people from hoarding animals again, to protect both animals and people.
The ASPCA encourages staying involved, helping with daily care and making sure any animals are spayed or neutered and vaccinated.
Read more
People who hoard animals are often isolated. Animals may have been their main source of comfort and connection.
If you’re worried about yourself
A few words if you feel you may have too many animals to care for.
If you’ve started to feel your animals are more than you can manage, noticing that takes courage. It shows how much you care about them.
Asking for help is not failing your animals. It is one of the most loving things you can do for them, and for yourself.
Small first steps
- Ask a vet about low-cost spay and neuter options to stop more animals arriving
- Pause before taking in any new animal
- Reach out to a local shelter or rescue about rehoming some animals
- Talk with your clinical provider or a therapist about how you’re feeling
- Tell one person you trust what’s going on
When and where to get help
Help for the person, the family and the animals.
It’s time to reach out if animals aren’t getting food, clean space or vet care, if the home has become unsafe, or if someone seems unable to look after themselves.
A path to support
- For the animals: contact local animal control, a humane society or SPCA, or the police.
- For the person: encourage a visit to a clinical provider to check health, mood and memory.
- Look for a therapist who understands hoarding, using the IOCDF Resource Directory.
- For an older adult who can’t stay safe alone, contact Adult Protective Services or local aging services.
- For families: find support for yourself, like a family support group.
Read more
The IOCDF Resource Directory at hoarding.iocdf.org lists therapists, clinics, programs and support groups by location.
The IOCDF also lists over 200 support groups, including groups for families and caregivers.
Read more
Outside the U.S., contact your local animal welfare organization or authorities about animals in need, and a family doctor about support for the person.
If you need to talk to someone now, findahelpline.com lists free, confidential helplines in many countries.
📝 Worksheets for this guide
Fill these in privately in the app. Your answers stay on your phone.
Sources
- ASPCA (American Society for the Prevention of Cruelty to Animals). Animal Hoarding
- ASPCA (American Society for the Prevention of Cruelty to Animals). Recognizing and Reporting Animal Abuse and Neglect
- International OCD Foundation (IOCDF) Hoarding Center. Subtypes & Related Disorders
- International OCD Foundation (IOCDF) Hoarding Center. Hoarding Task Forces (directory)
- International OCD Foundation (IOCDF) Hoarding Center. How to Use the Resource Directory
- International OCD Foundation (IOCDF) Hoarding Center. Find a Support Group
- NHS (UK National Health Service) (2026). Hoarding disorder
- Peer-reviewed research (PubMed, NIH) (1999). Hoarding of animals: an under-recognized public health problem in a difficult-to-study population (Patronek, Public Health Reports)
- Peer-reviewed research (PubMed Central, NIH) (2011). Comparison of object and animal hoarding (Frost, Patronek & Rosenfield, Depression and Anxiety)
- Peer-reviewed research (PubMed, NIH) (2017). Animal Hoarding Disorder: A new psychopathology? (Ferreira et al., Psychiatry Research)
- Peer-reviewed research (PubMed, NIH) (2023). Animal hoarding: a systematic review (Stumpf et al., Brazilian Journal of Psychiatry)
- Peer-reviewed research (PubMed Central, NIH) (2022). The Complexity of the Human–Animal Bond: Empathy, Attachment and Anthropomorphism in Human–Animal Relationships and Animal Hoarding (Prato-Previde, Basso Ricci & Colombo, Animals)
- Peer-reviewed research (PubMed, NIH) (2022). Noah Syndrome: A Review Regarding Animal Hoarding with Squalor (Innovations in Clinical Neuroscience)
- Peer-reviewed research (PubMed, NIH) (2010). General public health considerations for responding to animal hoarding cases (Castrodale et al., Journal of Environmental Health)
This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

