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 Do Cats Suck Their Tails? 7 Vet-Reviewed Reasons

Orange cat sucking on their tail

Tail-sucking is a confusing yet somewhat common feline behavior regardless of their age. Still, suckling is usually associated with nursing kittens, so it can be strange to observe this behavior in adult cats. Some cats might suck their tails habitually, while others might do it before specific tasks or when they feel unwell.

If you are dealing with a tail-sucking feline, this article will discuss the seven possible reasons behind their behavior.

divider 3 paws

The 7 Reasons Why Cats Suck Their Tails

1. Playfulness

If a cat is feeling playful, they might start playing with and sucking on their tails. This is commonly seen in cats who are playing with toys or other cats and start sucking on their tail when it catches their attention.

Cats playing with wands or teaser toys could also start randomly grabbing and sucking on their tails because its movements replicate those types of toys. They could also have mistaken their tail for another cat’s leg or tail during playtime. The more your cat’s tail moves, the more intrigued they might be to interact with it.

This possible reason isn’t usually a cause for concern and is fairly normal. Most cats quickly realize that there are better forms of entertainment and eventually leave their tails alone to resume what they were doing before.

cat-holding-and-licking-its-tail
Image Credit: Katho Menden, Shutterstock

2. Boredom

As we previously mentioned, cats seem to find some entertainment from playing and sucking on their tails. A bored cat with limited entertainment options might resort to sucking on their tails. This could be their way of relieving their boredom by using their tail as an outlet for their frustration from a lack of mental stimulation.

In situations where a bored cat isn’t having their needs met or feeling anxious or stressed from a lack of mental stimulation, their tail-sucking might progress to self-mutilation. This happens when they suck and overgroom their tail to the point of hair loss and skin irritation. It’s essential to ensure that your cat has plenty of species-appropriate entertainment to prevent them from becoming bored.

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!


    3. Instinct

    It’s instinctual for kittens to suckle on things, such as their tails, even after they have been weaned. Suckling brings them a sense of safety, security, and food when they are nursed by their mother. It’s normal for some kittens to suckle other objects or even themselves. Kittens are generally weaned from their mother’s milk from 6 weeks old but continue to suckle for the next few weeks. Although suckling behavior can lessen as kittens grow older, some adult cats occasionally do it too.

    mother cat and kittens in a box
    Image Credit: azklaa_am, Pixabay

    4. Allergies

    Cats with allergies may have itchy and irritated skin on their tails which is only relieved when biting or sucking on their tail.

    To determine if this is a possible reason, look out for signs of skin allergies in cats such as:

    • Hair loss
    • Frequent scratching
    • Overgrooming
    • Scabs or open sores

    These signs are usually visible in the areas your catch is itching the most, in this case, it would be their tails. However, you are likely to notice signs of skin allergies on other parts of their bodies too. Food, parasites, and environmental allergies are usually the main triggers for most cases of skin allergies in cats.

    To help your cat feel comfortable again, you should consult with a veterinarian about your cat’s possible skin allergies and tail overgrooming.

    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


    5. Pain or Discomfort

    Cats may start sucking or licking their tail to self-soothe when they feel pain or discomfort. It could be a sign of overgrooming if their tail sucking becomes excessive or leads to skin irritation. Licking and sucking their tail could help them cope with pain and release endorphins which could ease their discomfort. Arthritis, injuries, infections, and bladder problems are some of the many possible causes for a cat to experience pain and discomfort.

    Cats tend to hide their pain well, so don’t overlook sudden behavioral changes and get them checked out by a veterinarian if you have any concerns.

    orange-cat-licking-its-tail
    Image Credit: Ormalternative, Shutterstock

    6. To Promote Relaxation

    Cats generally associate suckling with positive emotions from a young age. Nursing from their mother brought them a sense of relaxation and security, which is a feeling that could be carried into adulthood. It’s not unusual for some adult cats to suckle things to promote relaxation like they did when they were kittens.

    They might suckle objects like blankets or certain toys, but some cats suck their tails too. Some owners find that their cats suck their tails to help them fall asleep or when they want to relax in a comfortable spot.


    7. Anxiety or Stress

    Similar to how a cat would suck their tail to relieve pain, they could do it when feeling stressed or anxious too. The endorphins released when grooming their tails through licking and suckling are soothing for overly anxious cats.

    Furthermore, it might be considered a displacement behavior in cats highly aroused from situations of anxiety or stress. Displacement behavior can happen when cats cannot perform an appropriate behavior to a situation or emotion and perform an irrelevant activity instead. In this case, their displacement behavior would be tail-sucking to self-soothe when they are stressed or anxious.

    For example, an anxious cat that is being harassed by another cat has the option to either run away or hide, but groom themselves instead. Although this behavior doesn’t seem like an appropriate reaction to the situation, it’s the cat’s way of trying to make themselves feel better.

    Those caring for anxious cats understand the struggles and discomfort that their companions feel on a daily basis. The innovative bowl shape of the Hepper Nest Bed provides nervous pets with support and its high sides offer a sense of security, diminishing stress and worry. To learn about how to the Hepper Nest can provide solace to your cat, click here.

    Hepper Cat Nest Bed
    • HAPPY COZY CATS - Your kitty will bask in luxurious sherpa-lined comfort while feeling warm, safe,...
    • MODERN DESIGN - Contemporary styling with upholstered fabric construction; just like your human...
    • WARM FLEECE LINER - Self warming, thick sherpa fleece with microfiber trim.

    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 3 paws

    Conclusion

    There are various possible reasons a cat could start sucking their tail. These possibilities range from instincts, pain, psychological, allergies, and even to promote relaxation. Tail sucking usually isn’t concerning in cats who occasionally do it for relaxation or instinctive reasons. However, it can be concerning if they do it because of pain, allergies, anxiety, and stress-related reasons.

    If your cat’s tail sucking is becoming excessive or causing skin irritation or hair loss, you should contact a veterinarian.

    See also: 


    Featured Image Credit: Vladimir Lazarev, 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

    11 DIY Cat Halloween Decorations You Can Make Today (With Pictures)

    Nothing ushers in the spooky season more than black cat decorations. But let’s face it, decorations are expensive. Why not save some bucks...

    Take Your Cat to Work Day 2025: When & What Is It

    Cats can be incredibly affectionate. They rub their heads on our faces, make biscuits on our legs, and cheer us up after a...

    Can Cats Eat Weed? Vet-Approved Facts & Safety Guide

    If you have your medical license, you may have wondered if you can share your marijuana with your kitty. Marijuana, also known as...

    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...

    More related

    Can Cats Eat Pistachios? Vet-Reviewed Nutritional Facts

    Cats can eat some pretty crazy things, even though they are naturally obligate carnivores. If your cat has taken a shine to these...

    Why Does My Cat Sleep Pressed Up Against Me? 5 Possible Reasons

    Cats are interesting creatures that seem to be mostly content by themselves. It’s not unusual to find your cat curled up on your...

    Disaster Preparedness for Cats: 12 Vet-Approved Steps to Take

    No one likes to think it could happen to them. After all, we have cell phones and technology that can alert us to...

    Do Cats Get Lonely in the Same Way That Humans Do? Our Vet Answers

    Many of us would gladly spend all day, every day, with our kitties at home, but it is usually not possible due to...

    Keep reading

    11 Health Benefits of Cat Grass: Vet-Reviewed Facts & Tips

    Cat grass is a popular addition to many cat households, offering a variety of health benefits for our feline friends. In this article, we’ll explore 11 health benefits of cat grass, providing information on its uses, tips, and safety precautions....

    Gray tabby lovely fluffy cat eating fresh green grass

    Why Are My Cats Fighting All of a Sudden? 5 Vet-Approved Reasons & Tips

    There is something so disheartening about two best pals turning into enemies. If your cats have always gotten along but seem to be at each other’s throats all the time now, you know there has to be a reason. Sometimes,...

    cats fighting

    How to Treat Ringworm in Cats (6 Vet-Approved Tips)

    Ringworm is a common fungal disease in mammals that can cause discomfort and irritation in cats. You can determine if your cat has ringworm by going to a veterinarian and having them complete a physical exam and any testing needed....

    scottish fold cat checked by vet

    How to Trim a Cat’s Nails (Who Won’t Cooperate): 12 Vet-Approved Tips

    Trimming a cat’s nails can be an important part of feline maintenance. Cats use their claws for hunting, defense, and balance. While they do scratch them against abrasive surfaces like trees, fences, walls, and even scratch posts, they may still...

    trimming nails of cat

    Why Does My Cat Like Water & Swimming? Vet-Reviewed Feline Behavior Explanation

    Cats have a reputation for disliking water. But, while it is true that some of our feline friends detest getting in baths and would never dream of taking a dip in the river or ocean, some breeds love nothing more...

    Scottish straight-eared long-haired cat swimming

    Can Cats Eat Licorice Root? Vet Approved Nutrition Advice

    As a pet parent, you want everything to be perfect for your feline pal, which includes ensuring there are no plants, herbs, spices, or food that your cat can get into that might hurt them. Many pet parents wonder if...

    Can Cats Eat Licorice Root

    Can Cats Eat Rice Krispies? Vet Approved Facts & FAQ

    Rice Krispies are a beloved breakfast cereal made from puffed rice. Kids love this sweet food for its fun popping sound. Some may want to share this tasty treat with their kitty, but is this a safe snack for cats?...

    Can Cats Eat Rice Krispies

    Top 9 Healthiest Cat Foods in 2025 (Top Ingredients & Brands)

    We all want our cats to be as healthy as possible and part of that comes from choosing the correct food for our cats. For our cats to be as healthy as possible, we need to select the healthiest food...

    cat eating kibbles from red bowl