# Why Is My Kitten Digging in the Litter Box? Causes Kittens dig in the litter box for many normal reasons, including instinct to bury waste, play, and exploration. If digging comes with crying, straining, or repeated trips with little urine, it can signal pain or a urinary problem that needs a veterinarian. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Normal digging is brief, relaxed, and usually ends with peeing, pooping, or covering. It is part of how cats keep their bathroom area clean. - Digging plus squatting with no urine, crying, licking the genital area, or pacing in and out of the box points to pain or a urinary problem. Call your veterinarian the same day. - Most cats prefer a large box (at least 50 cm, about 20 inches) with clumping clay litter, based on a 2025 study of indoor cats [1]. - Scoop at least once daily and replace litter fully on a regular schedule. Dirty boxes drive digging, avoidance, and house-soiling [2][3]. - Never punish digging. Punishment adds stress and can make litter box problems worse. ## Why Is My Kitten Digging in the Litter Box? Normal Reasons First Digging is a built-in cat behavior. Wild cats scratch at sand or soil to create a shallow spot, then cover what they leave behind. A kitten does the same thing in a litter box. Most of the time, digging is a sign that the box and litter are working for your kitten. ### Instinct to bury and cover Cats dig to make a hole before they go and to cover afterward. This is normal elimination behavior. A comfortable litter environment supports normal urination and reduces problem behaviors during elimination [1]. If your kitten digs, squats, goes, and then digs again to cover, that is a healthy sequence. ### Play and exploration Kittens explore with their paws. Litter moves, makes noise, and feels interesting. A young kitten may dig simply because it is fun. This often fades as the kitten matures. If your kitten digs, then lies down in the box, that can be play, comfort seeking, or a sign the box feels safe and cool. It can also be a pain signal, which is covered below. ### Marking and claiming space Some digging is about scent and territory. Cats have scent glands in their paws. Scratching and digging spread scent. In a home with several cats, one kitten may dig more around the box to leave its mark. Multiple cats in a household is one factor linked to house-soiling in a large survey of Italian cats [2]. ### Litter texture and depth Litter type matters. In one study, cats preferred clumping clay litter over other options [1]. A kitten may dig more in fine, soft litter and less in coarse pellets. If the litter is too shallow, some kittens dig to push litter into a pile before going. If it is too deep, they may dig to find a comfortable spot. ## Medical Causes to Rule Out Digging can be a pain behavior. This is the part owners miss most often. A kitten that digs frantically, cries, or keeps returning to the box without producing urine may have a urinary or genital problem. ### Urinary tract and FLUTD pain Feline lower urinary tract disease (FLUTD) covers several conditions that cause pain, straining, and frequent trips to the box. A kitten with FLUTD may dig, squat, and produce little or no urine. It may lick its genital area or cry while in the box. A male kitten that cannot urinate is an emergency. A complete blockage can become fatal within a day or two. ### Constipation or diarrhea Digging can also come with digestive discomfort. A kitten with constipation may strain and dig without passing stool. Diarrhea can cause urgency, so the kitten may dig and squat repeatedly. Both need a veterinary visit, especially in a young kitten that can dehydrate quickly. ### Pain elsewhere in the body Arthritis is uncommon in kittens, but injuries, abscesses, or abdominal pain can change how a kitten uses the box. A kitten in pain may dig to find a position that hurts less. Any sudden change in litter box behavior deserves a look. ### When digging signals pain Watch for these signs. Digging that lasts a long time, digging with crying or growling, digging then leaving without going, and digging plus repeated trips to the box all point to discomfort. If your kitten also hides, that combination is a red flag. See [Why Is My Cat Suddenly Hiding and Not Using the Litter Box?](/knowledge/veterinary-medicine/anxiety-and-behavior-support/cat-suddenly-hiding-not-using-litter-box) for more on that pattern. ## When Digging Becomes a Problem Digging itself is not a problem. The problem starts when digging turns into avoidance or house-soiling. At least 10% of all cats develop elimination problems, and some stop using the box completely [4]. Once a cat avoids the box, the avoidance can become chronic because the cat can develop a surface or location preference, such as your rug or your couch [4]. ### House-soiling and surrender risk House-soiling is the most common problem cat owners face and a leading reason cats are surrendered to shelters [1]. Urination or defecation outside the box accounts for about 30% of cat intakes at shelters in one report [5]. This is why early action matters. If your kitten starts going outside the box, act quickly before a habit forms [4]. ### Litter aversion Litter aversion means your kitten dislikes the litter. Signs include digging at the edge of the box, shaking paws, hovering instead of squatting, or going right next to the box. Scented litter, dusty litter, or a sudden litter change can trigger this. One study found cats urinated more often in a litter with an added attractant, which suggests litter scent and texture influence box use [5]. ### Box and location problems Box size, type, and location all matter. Cats in one study preferred boxes measuring at least 50 cm (about 20 inches) [1]. Covered boxes, tiny boxes, and boxes next to noisy appliances can all cause stress. A survey of over 3,000 cats found that the number, type, and location of boxes, the litter type, and how often litter was cleaned were all linked to house-soiling [2]. ### Multi-cat stress In a home with several cats, one kitten may guard the box or get ambushed on the way. This causes digging, hovering, and avoidance. The number of other cats and dogs in the household was associated with house-soiling in one study [2]. More boxes in more places helps. If your kitten is going outside the box, read [Why Is My Cat Peeing Outside the Litter Box?](/knowledge/veterinary-medicine/symptom-guides/cat-peeing-outside-litter-box) and [Why Is My Cat Pooping Outside the Litter Box? Causes and Solutions](/knowledge/veterinary-medicine/anxiety-and-behavior-support/cat-pooping-outside-litter-box) for step-by-step help. ## What to Do Step by Step ### Rule out medical causes first Book a veterinary visit before you change anything else. Your veterinarian will check for urinary, digestive, and pain issues. If your kitten is straining to urinate, cannot pass urine, or cries in the box, treat it as an emergency and go now. Do not wait to see if it passes. ### Set up the box correctly - Size: choose a box at least 50 cm (about 20 inches) long, since cats preferred this size in a study of indoor cats [1]. Bigger is better for a growing kitten. - Type: an open, low-sided box is easiest for a kitten to enter. Covered boxes trap odor and can feel like a trap to a nervous cat. - Number: one box per cat plus one extra. In multi-cat homes, spread them out so no cat has to pass another to reach a box. - Location: quiet spots with an escape route. Avoid next to food, water, washing machines, or drafty doors. ### Choose and manage litter - Start with unscented clumping clay litter, which cats preferred in one study [1]. - Keep 2 to 3 inches of litter so your kitten can dig and cover. - Scoop at least once daily. A survey of Italian cat owners found daily scooping and weekly full replacement were common practices, and cleaning frequency was linked to house-soiling risk [2][3]. - Wash the box with mild soap and water. Avoid strong cleaners that leave a smell. - If you switch litter, do it slowly over a week or two. ### Add enrichment and reduce stress - Provide scratching posts, perches, and play sessions. A tired, busy kitten digs less out of boredom. - Use food puzzles and scheduled play to burn energy. - Give each cat its own resources (food, water, beds, boxes) so no one has to compete. - Keep routines steady. Changes in the home can trigger box problems. ### Track the behavior Write down when your kitten digs, how long it lasts, and what happens next. Note urine and stool output, litter box visits, and any crying. This log helps your veterinarian tell normal digging from a medical problem. ## What Not to Do - Do not punish your kitten for digging or for going outside the box. Punishment adds fear and can make the problem worse. - Do not rub your kitten's nose in waste. This is harmful and does not work. - Do not use a covered box just because it looks tidy. Many cats dislike them. - Do not use scented litter or strong deodorizers to cover odor. Fix the cleaning routine instead. - Do not assume the behavior is behavioral before a veterinarian checks for pain. Digging can be the first sign of a urinary problem. - Do not wait weeks to act. Once a cat avoids the box, the habit can become chronic [4]. ## When to Involve a Veterinarian or Behavior Professional Call your veterinarian if digging starts suddenly, if it comes with crying or straining, or if your kitten stops using the box. A same-day visit is right for a kitten that squats often with little urine, has blood in the urine, or seems uncomfortable. An emergency visit is needed if your kitten cannot urinate at all, cries out, vomits, or becomes weak. A routine visit works for mild changes like digging more after a litter switch or a move. If your veterinarian finds no medical cause, ask about a certified behavior professional. A behavior consultant can help with multi-cat stress, litter aversion, and house-soiling. For a broader overview of box problems, see [Cat Litter Box Problems](/knowledge/veterinary-medicine/clinical-methods/cat-litter-box-problems). ## Limitations and When to Contact a Veterinarian This article covers common patterns, but every kitten is an individual. Only a veterinarian who examines your kitten can diagnose a medical cause. Contact your veterinarian the same day if your kitten strains to urinate, cries in the box, produces little or no urine, has blood in the urine, or stops eating. Go to an emergency clinic now if your kitten cannot pass any urine, is vomiting, or is weak or collapsed. A male kitten that cannot urinate can die within a day or two without treatment. Schedule a routine visit for new digging that lasts more than a day or two, digging with hiding, or any house-soiling. If your kitten is sleeping in the box or showing FLUTD-type pain, see [Why Is My Cat sleeping in litter box? FLUTD Pain and Anxiety Response](/knowledge/veterinary-medicine/symptom-guides/why-is-my-cat-sleeping-in-litter-box-flutd-pain-and-anxiety-response). ## Frequently Asked Questions ### Is it normal for a kitten to dig in the litter box? Yes, digging is normal in most cases. Kittens dig to bury waste, to explore, and to play. Normal digging is brief and relaxed, and it usually ends with urinating, defecating, or covering. If digging comes with crying, straining, or repeated trips without urine, it may be a pain sign. ### Why does my kitten dig but not go to the bathroom? Digging without going can mean the box or litter feels wrong, or it can mean pain. A kitten may dig, hover, and leave if the litter is too coarse, the box is dirty, or another cat is nearby. It can also be a urinary problem. If this happens often, call your veterinarian. ### Why is my kitten digging and then lying in the litter box? Lying in the box can be comfort seeking, play, or a sign of pain or stress. A kitten may lie in the box if it feels safe there, especially in a busy home. It can also be a FLUTD pain response. If your kitten lies in the box often or seems unwell, see your veterinarian. ### Does litter type affect digging? Yes, litter type affects how cats use the box. Cats in one study preferred clumping clay litter over other types [1]. Another study found cats urinated more often in a litter with an added attractant, which suggests scent and texture matter [5]. Try unscented clumping clay first. ### How often should I clean the litter box to stop problem digging? Scoop at least once daily and replace the litter fully on a regular schedule. A survey of over 3,000 cats found that litter cleaning frequency and box hygiene were linked to house-soiling risk [2][3]. Dirty boxes cause digging, avoidance, and going outside the box. Clean more often in multi-cat homes. ## Related Articles - [Why Is My Cat Peeing Outside the Litter Box?](/knowledge/veterinary-medicine/symptom-guides/cat-peeing-outside-litter-box) - [Why Is My Cat Pooping Outside the Litter Box? Causes and Solutions](/knowledge/veterinary-medicine/anxiety-and-behavior-support/cat-pooping-outside-litter-box) - [Why Is My Cat Suddenly Hiding and Not Using the Litter Box?](/knowledge/veterinary-medicine/anxiety-and-behavior-support/cat-suddenly-hiding-not-using-litter-box) - [Why Is My Cat sleeping in litter box? FLUTD Pain and Anxiety Response](/knowledge/veterinary-medicine/symptom-guides/why-is-my-cat-sleeping-in-litter-box-flutd-pain-and-anxiety-response) - [Cat Litter Box Problems](/knowledge/veterinary-medicine/clinical-methods/cat-litter-box-problems) - [Why Is My Cat Peeing on the Couch? Medical and Behavioral Causes](/knowledge/veterinary-medicine/anxiety-and-behavior-support/cat-peeing-on-couch) - [Why Is My Kitten Sitting in the Litter Box? Causes](/knowledge/veterinary-medicine/digestive-and-urinary-care/kitten-sitting-in-litter-box) - [Why Is My Cat Digging at the Floor? Causes and Fixes](/knowledge/veterinary-medicine/behavior/cat-digging-at-floor) - [Why Is My Kitten Refusing to Use the Litter Box?](/knowledge/veterinary-medicine/behavior/kitten-refusing-litter-box) ## References 1. [Litter box size and litter type preference and their associated behavioral changes in cats](https://pubmed.ncbi.nlm.nih.gov/40204471/). The Journal of veterinary medical science, 2025. 2. [Factors associated with house-soiling in Italian cats](https://pubmed.ncbi.nlm.nih.gov/37975187/). Journal of feline medicine and surgery, 2023. 3. [Litter Management Practices and House-Soiling in Italian Cats](https://pubmed.ncbi.nlm.nih.gov/37508159/). Animals : an open access journal from MDPI, 2023. 4. [Litter Box Problems](https://www.aspca.org/pet-care/cat-care/common-cat-behavior-issues/litter-box-problems). ASPCA Animal Poison Control Center. 5. [The Behavioural Effects of Innovative Litter Developed to Attract Cats](https://pubmed.ncbi.nlm.nih.gov/31540016/). Animals : an open access journal from MDPI, 2019. ## Further Reading - [Merck Veterinary Manual: Cat Owners](https://www.merckvetmanual.com/cat-owners) - [Cornell Feline Health Center: Health Information](https://www.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information) - [American Veterinary Medical Association: Pet Care](https://www.avma.org/resources-tools/pet-owners/petcare)