What is a Dewlap in Rabbits?

If you’ve ever spent time around rabbits, you’ve probably noticed how unique and diverse their physical features can be. From their floppy ears to their fluffy tails, rabbits are endlessly fascinating creatures. One feature that often sparks curiosity is the dewlap—a noticeable fold of skin, usually found under the chin and extending to the chest.

But what exactly is a dewlap? Why do some rabbits have it while others don’t? And what purpose does it serve? As a rabbit owner, I had all these questions when I noticed a prominent dewlap developing on my rabbit, Bella. At first, I was concerned, wondering if it was normal or a sign of a health issue. After some research and conversations with my vet, I realized it’s a completely natural feature, though one that comes with its own set of considerations.

Let’s explore the world of rabbit dewlaps, breaking down what they are, why they exist, and how to care for a rabbit with one.

What is a Dewlap?

A dewlap is a fold or pouch of loose skin that appears under a rabbit’s chin. It’s more common in females (known as does), but males (bucks) can also have a small dewlap, depending on their breed, age, and weight

.

The dewlap’s size can vary greatly between rabbits. In some, it’s barely noticeable, while in others, it’s large and fluffy, giving the rabbit a distinctive appearance. I remember when Bella’s dewlap started growing—it seemed to appear overnight! At first, I thought she had gained weight, but soon I realized it was her natural dewlap coming in.

Read more: Can Rabbits Eat Rosemary?

Why Do Rabbits Have Dewlaps?

The dewlap serves a few specific purposes, many of which are tied to a rabbit’s natural instincts and biology:

1. Nesting in Female Rabbits

In female rabbits, the dewlap is often used as a resource for building nests. When preparing for kits (baby rabbits), does will pluck fur from their dewlap to line their nests, creating a soft and warm space for their young.

Even spayed females like Bella may show nesting behavior, especially if their hormones fluctuate. Watching Bella pluck fur from her dewlap to line her favorite corner of the room was both amusing and fascinating—it’s an instinct she retained despite not being a mother.

2. Breed-Specific Traits

Some rabbit breeds are more prone to having prominent dewlaps. For instance, larger breeds like the Flemish Giant or New Zealand Rabbit often develop noticeable dewlaps, while smaller or sleeker breeds like the Netherland Dwarf may have little to none.

3. Fat Storage and Genetics

In some cases, the dewlap acts as a natural fat reserve, particularly in rabbits with a higher body weight. Genetics also play a role—if a rabbit’s lineage includes individuals with large dewlaps, they are more likely to develop one themselves.

Read more: Can Rabbits Eat Sunflower Leaves?

Are Dewlaps Normal?

Yes, dewlaps are completely normal in rabbits, especially in females. However, the size and appearance of the dewlap can vary significantly. A small, well-proportioned dewlap is nothing to worry about, but an excessively large or misshapen dewlap may indicate an underlying issue, such as obesity or a skin infection.

When Bella’s dewlap first became prominent, I was initially concerned it might be a sign of weight gain. After a vet visit and a closer look at her diet, I learned it was simply part of her natural development as a medium-sized doe.

Read more: 5 Best Foods for Netherland Dwarf Rabbits.

How to Care for a Rabbit with a Dewlap

While dewlaps are normal, they can require a little extra attention to keep your rabbit comfortable and healthy. Here are some tips for caring for a rabbit with a dewlap:

1. Monitor for Skin Irritation

The folds of a dewlap can trap moisture, which may lead to irritation or infection if not kept clean and dry. Check your rabbit’s dewlap regularly for redness, swelling, or signs of irritation.

Bella loved to drink from her water bowl, but her dewlap sometimes dipped into the water, leaving the skin damp. I switched to a water bottle to help keep her dry, and it made a big difference in preventing irritation.

2. Maintain a Healthy Weight

Excess weight can make a dewlap larger and more cumbersome, potentially leading to discomfort. Feeding your rabbit a balanced diet of hay, fresh greens, and pellets in appropriate portions is essential. Regular exercise and playtime also help keep your bunny fit and healthy.

3. Provide Regular Grooming

Rabbits with large dewlaps may have difficulty grooming themselves properly. You can help by gently brushing their dewlap and surrounding areas, ensuring there’s no buildup of fur or debris.

4. Watch for Abscesses

In some cases, a dewlap may develop an abscess, especially if the skin is irritated or injured. If you notice a lump, swelling, or discharge, consult your veterinarian immediately for treatment.

Read more: Can Rabbits Eat Marjoram?

Can a dewlap cause health problems?

For the most part, a dewlap is just another charming quirk of a rabbit’s anatomy and doesn’t cause trouble. But, like many things, it can lead to problems if you’re not paying close attention. A common issue is moisture buildup, especially if your bunny tends to dunk their chin in the water bowl while drinking. I’ve seen rabbits whose dewlaps stayed damp for too long, and unfortunately, that can irritate the skin and create the perfect environment for bacteria to grow.

Another thing to watch for is the size. If a dewlap gets too large—say, due to weight gain—it can make it harder for your rabbit to groom themselves. That’s when you might notice matted fur or even sores developing underneath. Honestly, I once knew someone whose rabbit had a dewlap that was so big it started interfering with how they moved around, and it became a bit of a challenge to manage.

So, what’s the takeaway? Keep an eye on your rabbit’s dewlap during grooming sessions. If it ever looks red, swollen, or smells strange, it’s worth reaching out to your vet. A clean, dry, and fluffy dewlap is a happy dewlap!

Read more: What Is the Difference Between a Jackrabbit and a Cottontail?

Why is my rabbit’s dewlap so big?

This is a question a lot of rabbit owners end up asking themselves, especially if their bunny suddenly looks like they’re carrying a little fluffy pillow under their chin! There are several reasons why a dewlap can grow larger, and in most cases, it’s completely natural.

Firstly, breed and genetics play a huge role. Some rabbit breeds, like Flemish Giants or New Zealand Whites, are just prone to having larger dewlaps. It’s kind of like how some people are taller or have broader shoulders—it’s all in the genes.

Hormones also have a big influence, especially in unspayed females.

When I adopted my first rabbit, a sweet but sassy French Lop named Daisy, her dewlap seemed to double in size as she hit maturity. It turns out that unspayed females develop larger dewlaps because their bodies are naturally preparing for the possibility of nesting. I remember watching her pluck fur from her dewlap to line a nest, even though there were no baby bunnies in sight—it’s all instinct.

Finally, weight can also make a dewlap appear larger. If your rabbit’s carrying a little extra fluff, it’s likely that fat is accumulating in the dewlap as well. This happened to my friend’s Mini Rex, who adored treats a bit too much. Once she adjusted his diet and encouraged more hopping around, his dewlap became noticeably smaller.

If your bunny’s dewlap feels unusually firm or seems to be growing at an alarming rate, it’s a good idea to consult a vet just to rule out any underlying health issues, like an abscess or cyst.

Read more: 10 Fast-Growing Plants That Rabbits Can Eat

What are the signs of a dewlap?

At first glance, a dewlap might just look like a little pouch of extra fur under your rabbit’s chin. It’s soft, fluffy, and sometimes almost blends into the rest of their body, so you might not notice it right away unless you’re looking for it. If your rabbit is a female, especially one from a larger breed, you’re more likely to see a dewlap develop as she matures.

Here’s the thing—dewlaps can vary a lot in size. Some are tiny, just a subtle fold of skin, while others are much more pronounced. I remember meeting a Flemish Giant at a rescue event whose dewlap was so big, it almost looked like a scarf wrapped around her neck! But that’s totally normal for her breed.

You might also notice behavioral signs that your rabbit has a dewlap. Female rabbits with dewlaps will often pull fur from it when they’re nesting. I’ll never forget the first time I saw my bunny plucking fur from hers—I panicked, thinking she was stressed or sick! It turns out she was just following her instincts.

If you’re still unsure whether your rabbit has a dewlap, gently run your hand under their chin during a cuddle session. You’ll feel the loose skin and fluff if it’s there. Just keep in mind that not every rabbit has a noticeable dewlap, and that’s perfectly okay too!

When to Be Concerned

While most dewlaps are harmless, there are times when they may indicate a problem. Watch for the following signs:

• Excessive size or sagging: This could be a sign of obesity or fluid retention.

• Redness or sores: Moisture trapped in the folds can lead to skin infections.

• Lumps or abscesses: Any unusual growths should be examined by a vet.

• Difficulty eating or grooming: If the dewlap is interfering with your rabbit’s daily activities, it may require attention.

If you notice any of these issues, don’t hesitate to reach out to a rabbit-savvy veterinarian.

Dewlap Myths and Misconceptions

There are a few common misconceptions about dewlaps in rabbits. Let’s clear them up:

Myth 1: Only Overweight Rabbits Have Dewlaps

While weight can affect the size of a dewlap, it’s not the sole factor. Many healthy rabbits have naturally large dewlaps due to their breed or genetics.

Myth 2: Male Rabbits Don’t Have Dewlaps

While less common, male rabbits can develop small dewlaps, especially if they are of a

larger breed or carry genetic traits for it.

Myth 3: Dewlaps Always Indicate Health Problems

A dewlap is a normal feature for many rabbits. As long as it’s proportionate, clean, and free of irritation, there’s no cause for concern.

Reflecting on Bella’s Dewlap

When Bella’s dewlap first appeared, I didn’t know much about it. I worried it might be a health issue or a sign that I was feeding her too much. But through research and a bit of trial and error, I learned how to care for her and keep her comfortable.

Her dewlap became a part of her personality—a fluffy little quirk that made her even more endearing. I’ll always remember the way she used it to pluck fur for her “nests,” even though she never had kits. It was a reminder of the fascinating instincts that rabbits carry, even in a domestic setting.

Read more: What Is the Difference Between a Rabbit and a Jackrabbit?

FAQ: All About Rabbit Dewlaps

1. What exactly is a dewlap in rabbits?

A dewlap is a fold of loose skin located under a rabbit’s chin and sometimes extending down to their chest. It’s more common in female rabbits, particularly those that are not spayed, as it serves a practical purpose during nesting. The dewlap is often soft and fluffy, and while it may look like a small pillow under your rabbit’s chin, it’s a natural part of their anatomy. Think of it as a storage spot for fur that they’ll use to line their nests when preparing for babies.

2. Do all rabbits have a dewlap?

Not all rabbits have a dewlap. While it’s common in many female rabbits, especially larger breeds or those that are not spayed, it’s less prominent—or even absent—in some breeds, males, and spayed females. Some breeds, like Flemish Giants or New Zealand Whites, are more likely to develop noticeable dewlaps due to their genetics. Smaller breeds or more slender rabbits may have little to no dewlap. If your bunny doesn’t have one, don’t worry—it’s just a natural variation.

3. Why is my rabbit’s dewlap so big?

A large dewlap is often the result of a combination of factors such as breed, gender, age, and weight. Some breeds, like French Lops and Flemish Giants, are predisposed to having larger dewlaps. Overweight rabbits may also develop bigger dewlaps because excess fat can accumulate in the area. In unspayed females, hormonal changes can cause the dewlap to grow, especially during nesting preparation. If your rabbit’s dewlap seems unusually large, it’s worth checking with a vet to rule out any health concerns like abscesses or infections.

4. Is a dewlap in rabbits normal, or should I be concerned?

A dewlap is perfectly normal for many rabbits and is often a sign of healthy development, especially in females. However, it’s important to monitor it for any changes. If the dewlap becomes red, swollen, or develops sores, it could indicate an issue like skin irritation, infection, or excessive moisture. Regular grooming and keeping the area clean can prevent problems. If you notice anything unusual, a vet visit is a good idea to ensure your bunny is healthy.

Read more: Can Rabbits Eat Tarragon?

5. Can male rabbits have dewlaps?

Yes, but it’s less common. Male rabbits generally don’t develop large or prominent dewlaps like females do. If a male rabbit has a noticeable dewlap, it could be due to genetics, weight, or an underlying health issue. If you’re unsure whether it’s normal for your male rabbit, it’s always wise to consult your veterinarian for reassurance.

6. Should I groom or care for my rabbit’s dewlap?

Absolutely! While a dewlap doesn’t require a special grooming routine, it’s important to keep the area clean and dry to prevent skin issues. Check regularly for signs of irritation or dampness, as the dewlap can sometimes trap moisture from drinking or drooling. If your rabbit struggles to groom themselves—perhaps due to age or obesity—you can gently assist by brushing the fur and wiping the area with a damp cloth as needed. Always be gentle, as rabbits have sensitive skin.

7. Does spaying affect a rabbit’s dewlap?

Yes, spaying can have an impact on the size of a rabbit’s dewlap. Female rabbits that are spayed before maturity or soon after developing a dewlap may have a smaller one or none at all. This is because spaying removes the hormones that drive the growth of the dewlap. For rabbits that already have a large dewlap, spaying won’t make it disappear, but it can prevent further growth and reduce nesting behaviors.

8. Why does my rabbit pull fur from their dewlap?

If you’ve noticed your rabbit pulling fur from their dewlap, they’re likely preparing a nest. This behavior is common in unspayed female rabbits due to hormonal instincts, even if they aren’t pregnant. They use the fur to create a soft, warm bed for potential kits. However, if your rabbit is pulling fur excessively or the skin looks irritated, it’s worth checking with a vet to rule out stress, false pregnancy, or other health concerns.

9. Can a dewlap cause health problems?

While a dewlap itself isn’t a problem, it can sometimes lead to complications if not properly cared for. Large dewlaps can trap moisture, which may cause skin irritation or infections. In rare cases, the weight of an oversized dewlap can make it difficult for the rabbit to groom or move comfortably. Regular monitoring and keeping the area clean can help prevent issues. If you notice persistent redness, swelling, or a bad odor, consult your veterinarian promptly.

10. Is there a way to prevent a rabbit’s dewlap from growing too large?

There are a few ways to manage the size of a rabbit’s dewlap. Spaying your rabbit at the appropriate age can prevent excessive hormonal changes that lead to large dewlaps. Keeping your rabbit at a healthy weight through proper diet and exercise also helps, as overweight rabbits tend to have larger dewlaps. Regular vet check-ups can ensure your rabbit stays healthy overall, including the size of their dewlap.

11. Are some rabbit breeds more prone to dewlaps than others?

Yes, certain breeds are more likely to have prominent dewlaps. Larger breeds like Flemish Giants, French Lops, and New Zealand Whites are known for their well-defined dewlaps, especially in females. On the other hand, smaller or sleeker breeds like Netherland Dwarfs and Mini Rexes may have little to no dewlap. If you’re choosing a rabbit breed and prefer one without a large dewlap, research their breed characteristics beforehand.

12. What should I do if my rabbit’s dewlap looks irritated?

If your rabbit’s dewlap appears irritated, red, or swollen, it’s important to address it quickly. First, check for potential causes, such as trapped moisture, dirty bedding, or overgrooming. Gently clean the area with a damp cloth and ensure your rabbit’s living space is dry and clean. If the irritation doesn’t improve within a day or two, or if you notice signs of infection like pus or a foul odor, take your rabbit to the vet for a thorough examination.

13. Is a dewlap ever removed surgically?

In rare cases, a vet may recommend surgery to remove a dewlap if it causes significant health problems, such as infections, sores, or mobility issues. However, this is uncommon and only done as a last resort. Most dewlaps can be managed with proper care and attention to your rabbit’s hygiene and weight.

14. Do rabbits find their dewlaps uncomfortable?

Not at all! For most rabbits, a dewlap is just a natural part of their body and doesn’t cause discomfort. However, if it becomes too large, irritated, or infected, it can lead to problems. Keeping your rabbit healthy and their living environment clean ensures that their dewlap remains a harmless and fluffy feature.

15. How can I tell if my rabbit’s dewlap is healthy?

A healthy dewlap should look clean, dry, and free from any redness, swelling, or sores. The fur should be well-groomed and not matted or damp. Take a moment during regular grooming sessions to inspect your rabbit’s dewlap. If anything seems off—like an unusual texture, discoloration, or odor—consult a vet to rule out potential health issues.

A dewlap is a unique and natural feature of many rabbits, especially females. While it serves specific purposes, such as nest-building, it can also simply be a characteristic of certain breeds or genetics. As a rabbit owner, understanding what a dewlap is and how to care for it ensures your furry friend stays happy and healthy.

Whether it’s monitoring for irritation, maintaining a balanced diet, or simply appreciating the charm it adds to your rabbit’s appearance, a dewlap is just one more reason to marvel at the incredible diversity of these adorable creatures. Bella’s dewlap became a defining feature of her personality, and caring for her taught me so much about the unique needs of rabbits.

In the end, every rabbit is special in their own way, and their quirks—whether it’s a fluffy dewlap or a mischievous hop—make them the lovable companions we cherish.