Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Cat Suck on My Fingers? 3 Vet-Reviewed Reasons

Share

grey cat sucking finger

Cat parents understand that felines are peculiar creatures who sometimes engage in odd behaviors, such as napping in tight spaces, head-bumping you, and chewing or suckling on bizarre objects, such as blankets and towels. Cat suckling is generally harmless and can occur in cats of all breeds. However, when it occurs in adult cats, the behavior is viewed as odd, as most kittens grow out of the behavior.

If your cat sucks on your fingers and you’re wondering why and if you should worry about the behavior, you’ve landed on the right spot.

In this post, we’ll get to the bottom of this behavior to learn the three common reasons why your cat sucks on your fingers and if it’s a signal for concern.

divider cat paws 2 oct 2024

The 3 Reasons Why Your Cat Sucks on Your Fingers:

1. Weaned Too Early

One common reason for this behavior stems from your cat having been weaned too early from their mother. Weaning is an important step in transitioning kittens from their mother’s milk to solid food. The weaning process allows kittens to become more independent, mobile, socialized, and non-reliant on the mother.

Most veterinarians agree that the weaning process should begin at 4 weeks of age. Kittens weaned before this time are more prone to developing behavioral problems later, such as anxiety, aggression, or suckling on your fingers.1 Sometimes, a kitten is weaned too early because they may have been abandoned by the mother or orphaned and this may make stereotypic behaviors such as suckling more likely to occur into adulthood.

Cute kitten biting or suckling a human hand
Image Credit: XINN, Shutterstock

2. Sign of Distress

Distress can result in obsessive-compulsive behaviors that can involve your cat sucking your fingers. Distress may or may not accompany other odd behaviors, including paw sucking, tail chewing, and over-grooming. When a cat is distressed, all of these behaviors can be self-soothing. However, it’s advisable to have a vet examine your cat to rule out possible underlying medical issues that may be causing pain and anxiety if your cat shows signs of distress.

Other signs of distress in cats are:
  • Increased vocalization
  • Urinating outside the litter box
  • Aggression
  • Low energy
  • Hiding
  • Low appetite/low water intake
  • Vomiting and diarrhea

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money


3. Pica in Adult Cats

Pica is defined as the consistent chewing, sucking, or the consumption of inedible or inappropriate materials. Such materials may be fabric, paper, cardboard, plastic, plants, wood, and rubber. Such activity can become dangerous if your cat ingests an inedible object or chews and sucks on a poisonous plant. In these cases, a trip to the vet is necessary to try and deter the behavior due to its possible effects on the cat’s health.

Pica is not very common, and the disorder is not well understood yet. Pica isn’t always a sign of a medical issue, but it’s crucial to rule this out with blood work, urine, and fecal samples. There are a plethora of possible causes of pica ranging from gastrointestinal diseases to hormonal diseases to behavioral conditions.  Treatment is complex and will vary depending on the cause.

Conditions that may cause Pica are:
  • Behavioral conditions, such as boredom, compulsion, stress, and anxiety
  • Early weaning/lack of socialization
  • Genetics
  • Gastrointestinal diseases
  • Endocrine diseases (anemia, hypothyroidism, diabetes mellitus, liver disease
  • Neurological diseases
  • Parasites
  • Poor nutrition
  • Teething issues
  • Pyruvate kinase deficiency

hand showing the teeth of blue tabby maine coon cat
Image Credit: Nils Jacobi, Shutterstock

divider cat paws 2 oct 2024

What to Do About Your Cat Suckling Your Fingers

Cat suckling is typically no cause for alarm and is considered generally unharmful. However, this potentially compulsive behavior can become a problem if your cat sucks not only your fingers but on other inedible objects, like fabrics, cardboard, paper, etc.  There is a risk that your cat might swallow parts of these objects, which could result in a gastrointestinal foreign body, which is a veterinary emergency.

The first form of action should be a veterinary consult to ensure no underlying medical issue is present. If no underlying issue is the culprit, then there is usually nothing to worry about unless the sucking turns into a compulsion and causes stress or the ingestion of inedible objects.

If your cat is sucking your fingers, it could simply be a great source of comfort and contentment for your cat, and it could be hard to deter your cat from this behavior as an adult. It’s important to keep potentially harmful objects out of reach in case your cat decides to suck on something else, like a poisonous plant.

Ensure Your Cat’s Needs Are Being Met

If you attempt to deter this behavior, it’s vital to assess your cat’s needs and ensure you are meeting those needs.

Ensure your cat has plenty of mental stimulation, is eating a nutritious and appropriate diet, and has plenty of hiding places, like a cat tree. If you feel your cat is stressed, try to determine the cause of the stress; you may need to enlist your vet’s help to figure out the stressors.

Looking for toys that will cater to the many needs of your cat? The Hepper Hi-lo Cat Scratcher is one of our favorite cat products, and it will encourage your cat to get active. Its clever three-angle design offers multiple ways for your cat to climb, stretch, and exercise. Made of a sturdy plywood base and a replacement cardboard insert, this scratcher is an option that cats can enjoy for years to come. If your cat requires a little encouragement for self-play, the Hepper Catnip Mice Toy Set is a fantastic choice for their instinctual needs. Made with natural, bite-resistant hessian fabric and filled with organic catnip. Cats can satisfy their natural prey instincts while getting the physical activity they need to thrive. 

Image Product Details
Great for Exercise Hepper Hi-Lo Cat Scratcher Hepper Hi-Lo Cat Scratcher
  • Multi-level play
  • Promotes exercise
  • Long-lasting material
  • Encourages Self-Play Hepper Catnip Mice Toy Set Hepper Catnip Mice Toy Set
  • Contains catnip
  • Kitten safe
  • Satisfies prey instinct
  • At Catster, we've admired Hepper for many years, and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

    divider cat paws 2 oct 2024

    Conclusion

    There are several reasons why your cat is sucking on your fingers, including having been weaned too early, pica, and general stress. Some cats may grow out of the behavior, and others never do. If your cat sucks your fingers, especially if the behavior is new, it’s vital to have your vet check your cat for any possible medical issues.

    It’s also important to keep harmful objects out of reach to prevent ingestion of inedible objects, like cardboard, fabric, towels, plastics, etc., as these objects can lead to gastro issues or intestinal blockages.

    See also: 

     


    Featured Image Credit: Denis Val, Shutterstock

    Want content like this delivered to you?

    Sign Up For Our Newsletter

    News, insights, expert advice, and everything cat

    * By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




    How useful was this post?

    Click on a star to rate (you can leave written feedback after clicking submit)

    Help us improve Catster for pet parents!

    Your feedback really matters.

    What did you like about this post? Also how can we improve it?

    Join the conversation

    Leave a Reply

    You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


    Talk With A Vet Online

    Peace of mind,
    anywhere, anytime

    Affordable vet advice

    What Feral Cats Actually Need From the People Who Feed Them

    Feral cats are everywhere. Slipping between parked cars, darting under porches, appearing briefly at dusk before vanishing again. Most people see them, feel...

    Capturing Catstanbul

    Istanbul – famous for its bustling markets, unique architecture, and vibrant culture, there is one more feature of this Mediterranean capital that deserves...

    Ask Dr. Paola – Help! My Male Cat Gets Into Fights! (March 9, 2026)

    Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

    Why Your Cat’s Poop Smells Like a Biohazard

    Nobody enjoys litter box duty, but sometimes it gets unbearable. The smell hits you from across the room. You’re scooping faster, lighting candles,...

    More related

    What Age Cat Should I Adopt? Benefits & Risks At Each Life Stage Explained

    You’ve decided it’s time to get a warm, fuzzy love ball – in essence, a cat. But there are so many unwanted cats...

    Amsterdam’s Floating Cat Sanctuary: De Poezenboot (The Cat Boat)

    If you’re like me, then you understand me when I say that there’s something about cats that is so irresistibly charming. These furry...

    Asian Semi-Longhair Cat Breed Info: Pictures, Traits & Facts

    The Asian Semi-Longhair is widely regarded as one of the most attractive domesticated cats. They are also commonly called Tiffanies, perhaps even more...

    How Long Do Cat Colds Last? Causes, Signs, & Treatments

    Just like us, our cats can get the sniffles here and there. Respiratory illnesses are among the most common things that can go...

    Keep reading

    At What Age Do Kittens Start Eating Food & Drinking Water? Vet-Reviewed Facts

    If your cat is pregnant, you are probably worried about how you will care for her newborn kittens. There are so many things to know and learn, especially when feeding newborns and growing kittens. If your biggest question is when...

    Kitten eating food from bowl

    Hemp Oil vs CBD Oil for Cats: Is There a Difference? Our 2026 Vet-Reviewed Comparison

    Making sure their feline is safe, happy, and healthy is the priority of every cat owner. Providing healthy food, a clean litter box, a safe home to play and sleep in, and regular veterinarian visits are all part of being...

    Hemp vs CBD oil

    Can Cats Eat Canned Salmon? Vet-Reviewed Facts & FAQ

    Cats are notorious for their love of fish, so feeding them a bit of canned salmon should be a no-brainer. What could be safer than that, right? As it turns out, while serving your cat canned salmon likely won’t kill...

    Can Cats Eat Canned Salmon

    Cat FIP Signs & Treatment: Vet-Reviewed Facts & FAQ

    Feline infectious peritonitis (FIP) is a disease caused by a mutation of the FeCv virus. Known as the feline coronavirus, FeCv isn’t the same as COVID-19 and isn’t contagious to humans. Most of the time, a cat exposed to FeCv...

    cat and vet.

    My Cat Has a Lump on Their Back Near The Spine, Is It Dangerous? Vet Approved Advice

    Every pet parent is familiar with the alarm of discovering a sudden change in their pet. It can be very scary to find a growth in their body, and our brains immediately jump to cancer since that’s a fairly common...

    veterinarians examining a Maine Coon cat at a veterinary clinic

    Can Cats Eat Lychee? Vet-Reviewed Nutritional Facts & FAQ

    Cats are obligate carnivores, so they need little more than animal protein to stay happy and healthy throughout their lives. However, this is not to say that eating some safe plant material is detrimental to cats. Cats can indeed consume...

    Can Cats Eat Lychee

    Why Does My Cat Lay, Sleep, or Play in the Litter Box? 6 Vet-Reviewed Reasons

    It is more common than you might think to see a cat lying or even sleeping in their litter box, and it is usually an undesirable action. It can be a sign of illness or may indicate that your cat...

    two cats looking at the litter box

    Will Cat Conjunctivitis Go Away by Itself? Vet-Verified Facts & Info

    There are a variety of eye infections and issues you may see in your cat throughout their life, and conjunctivitis is one of the most common eye issues that cats get. Conjunctivitis, also sometimes referred to as pink eye, is...

    Woman cleans a cat's eyes

    Love Cats? So Do We! Join the Catster Community

    Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




    Sign up for the Catster Email Newsletter

    Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.