When it comes to Shetland Sheepdogs, commonly known as Shelties, both male and female dogs are quite similar in terms of size and appearance. The height for adults typically ranges between 13–16 inches, and they weigh anywhere from 11–24 pounds. Despite these similarities, there are slight differences in behavior and temperament that can help guide your decision. Males may be more prone to marking behaviors and show more aggressive tendencies, especially if intact. However, these behaviors can often be controlled with training and proper care. Females, on the other hand, may exhibit hormonal fluctuations, particularly when in heat, which can influence their personality and behavior. These slight differences aside, both genders are known for their affectionate nature and loyalty to their families. Is Your Shetland Sheepdog Up to Breed Standard? Find Out!
In terms of personality, Shetland Sheepdogs are generally intelligent, trainable, and active dogs. Males and females are equally capable of thriving in active households, where they enjoy plenty of exercise and mental stimulation. The breed was originally developed for herding, so it’s in their nature to be energetic and eager to work. Male Shelties, while usually similar in size to females, might exhibit slightly more dominant behaviors or wandering tendencies, especially when not spayed or neutered. In contrast, female Shelties may become more affectionate during pregnancy or when in heat, making them especially lovable during these times. Regardless of gender, both males and females make excellent family pets due to their trustworthy and loyal natures.
At a Glance

Shetland Sheepdogs 101
The Shetland Sheepdog is often described as a miniature version of the Rough Collie, though its origins trace back to a mix of Spitz-type dogs and Collies. Developed on the Shetland Islands in Scotland, these dogs were bred to be hardy and active so they could thrive in the harsh island environment while assisting with herding tasks. While their work as herding dogs has become less common with the rise of commercial farming, their herding instincts remain sharp, and many Shelties still participate in dog sports and agility competitions today. Both males and females share similar instincts, but males can sometimes show more noticeable aggressive tendencies, which might affect their interactions with other animals and people.
Known for their trainability and intelligence, Shetland Sheepdogs are one of the brightest dog breeds, often ranking high in intelligence. Males and females alike excel in canine sports and can learn new commands with only a few repetitions. Their herding instincts mean they need both mental and physical stimulation to remain happy and healthy. As highly active dogs, they are not suited for sedentary lifestyles. While males may have a slight edge in dominance and marking behaviors, both genders are known for their affectionate and loyal nature. Whether you are a single person or have a family, the Shetland Sheepdog will bring joy, companionship, and an added level of energy to your household.
Male Shetland Sheepdog Overview
Male Shetland Sheepdogs are often considered to be slightly more independent than their female counterparts. They are more likely to exhibit marking behaviors, especially if not neutered, and may show a higher likelihood of wandering. These behaviors are largely driven by hormonal fluctuations, which can be more intense in intact males. That said, with the right training and socialization, these tendencies can be managed. Males also tend to be a bit more dominant in certain situations, but their affectionate and loyal personalities remain intact. With proper care and training, male Shelties make excellent pets, especially in households that are active and can keep up with their energetic nature.
In terms of health, male Shetland Sheepdogs share many of the same concerns as females, such as hip dysplasia, eye conditions, and cancer. However, males may be more prone to certain genetic conditions, such as thyroid problems and some forms of cancer that affect males more than females. X-rays are often recommended for males to check for hip dysplasia, especially if they are being used for breeding. Just like their female counterparts, male Shelties should undergo genetic testing before being used for breeding, to ensure they are not passing on hereditary health problems.

Personality/Character
Both male and female Shetland Sheepdogs are known for their intelligence, trainability, and loyalty. Males may sometimes display more dominant tendencies, but this is often manageable with proper training and early socialization. Females, on the other hand, are sometimes more affectionate and gentle, especially during certain hormonal changes, such as heat or pregnancy. These fluctuations can sometimes make female Shelties seem more affectionate or even more demanding for attention. Regardless of gender, Shelties are affectionate dogs that form strong bonds with their owners. They can be quite protective of their families, which, combined with their natural herding instincts, makes them excellent companions for active households.
Overall, the personality of a Shetland Sheepdog will depend heavily on socialization and training, not just their gender. While males may show more independent traits, females may become more affectionate during certain periods. Whether you choose a male or female, both are equally capable of forming strong bonds with their family members and excelling in a variety of activities, from agility to obedience training. As intelligent dogs, Shelties love being challenged and need mental stimulation to prevent boredom. Their ability to follow commands quickly and adapt to various environments makes them an ideal choice for families or active individuals looking for a loyal companion.
Training
Training a Shetland Sheepdog, whether male or female, is generally straightforward due to their intelligence and natural trainability. These dogs are quick learners and often excel in canine sports and activities. Males may sometimes be a bit more dominant or stubborn, particularly if they are not neutered, but with consistent training, these behaviors can be addressed. Females, on the other hand, may be more affectionate and eager to please, making them slightly easier to train in some cases. However, both sexes are equally smart and responsive to positive reinforcement. Early socialization is key for both, as Shetland Sheepdogs can be reserved or even protective around strangers.
The herding instincts of these dogs also mean they may try to herd smaller children, animals, or even other pets. This is especially true for males, who might have a stronger instinct to assert dominance in some situations. However, with training and consistency, these instincts can be managed. It’s important to note that while training may differ slightly based on gender, both males and females are eager to learn and will thrive in environments that provide mental and physical challenges. Training should focus on reinforcing good behaviors, such as proper socialization, obedience, and focus, to ensure they grow into well-behaved and happy dogs.

Health & Care
Health and care for male and female Shetland Sheepdogs are largely the same, though there are some slight differences in the health issues that affect each gender. Males may be more prone to certain genetic disorders, such as thyroid problems and certain types of cancer. It’s also common for males to experience hip dysplasia, though it’s generally not as severe due to their smaller size compared to other breeds. Females, on the other hand, may be more prone to ovarian cancer and hormonal fluctuations, which can lead to changes in their behavior and overall health. Both genders are also susceptible to common issues like eye conditions, deafness, and von Willebrand’s disease, a blood disorder that affects both sexes but may be more severe in females.
Regular veterinary care is essential for both males and females to address these health concerns and prevent serious issues. Regular vaccinations, check-ups, and genetic testing can help catch problems early. Male Shelties should be monitored for marking behaviors and wandering, which can indicate underlying health or behavioral issues. Females may require additional care during heat cycles or pregnancy, but both genders thrive with consistent grooming, exercise, and mental stimulation. Their long coats require regular brushing to avoid mats and tangles, and shedding is a common issue year-round.
Breeding
When considering breeding Shetland Sheepdogs, both male and female dogs have their own sets of considerations. Males are often used in breeding because of their ability to sire many litters. However, it’s important to ensure they are in good health and free from genetic issues, as they can pass down certain conditions like hip dysplasia and thyroid problems. Females, on the other hand, should only be bred if they are in optimal health and have passed their genetic tests to ensure they don’t pass on hereditary issues. Breeding should always be done responsibly and with the health of both the male and female dog in mind.
Females tend to go into heat approximately twice a year, and it’s crucial to manage their health and behavior during this period. While males may be more prone to wandering during the heat cycle of a female, responsible breeding practices can help mitigate this behavior. If you are considering breeding a male or female Sheltie, be sure to consult with a veterinarian to ensure both dogs are free from any health conditions that could affect their ability to produce healthy puppies. Proper breeding not only helps preserve the health of the breed but also ensures the puppies will inherit the best traits from both parents.
Female Shetland Sheepdog Overview
Female Shetland Sheepdogs tend to have a slightly more gentle and affectionate nature than their male counterparts, especially during certain hormonal fluctuations like those associated with heat. While they share many traits with males, females are often more affectionate and nurturing. This makes them excellent family dogs, particularly for households where affection is important. Females tend to be more gentle with children and other pets, although they may become more territorial or protective during certain periods. Their bonding with their families can be even stronger during pregnancy or heat, when they are especially in need of attention and care.
Like males, females can also experience health issues like hip dysplasia, eye conditions, and cancer, but they are also more likely to develop ovarian cancer and hormonal imbalances. These health issues can affect their behavior, making them more sensitive or even more aggressive during certain times. Females should be spayed or neutered to prevent complications related to heat cycles. Regular visits to the vet and a consistent care routine will help manage any potential issues, ensuring that your female Sheltie remains healthy and happy.

Personality/Character
Female Shelties are known for their affectionate and gentle nature. They tend to be more responsive to training and enjoy being around their owners. Unlike the sometimes more dominant or independent males, females are more likely to show their affection and form strong bonds with their family. This can be an especially great trait for families with children, as females tend to be more patient and gentle. Their nurturing side makes them natural companions, as they are always eager to please and get along with other pets and children.
On the downside, female Shetland Sheepdogs may experience more mood swings due to hormonal changes, especially if they are not spayed. During heat, they might become more protective or withdrawn. However, their overall affectionate personality shines through when they feel comfortable and secure. Females also tend to be more sensitive to their owner’s emotions and can provide great emotional support due to their innate bonding tendencies. Their gentle nature makes them a top choice for families or individuals who want a dog that can provide both companionship and a calming presence.
Training
Training female Shetland Sheepdogs is usually an easy task, as they are very trainable and eager to please. Females tend to be more affectionate and responsive to training commands, making them easier to motivate than some males, who may be more stubborn or dominant. Females thrive on positive reinforcement and enjoy working alongside their owners. However, they can also be more sensitive to harsh training techniques, so it’s important to use gentle methods that reward good behavior. As intelligent dogs, female Shelties can pick up new tricks quickly, but socialization should begin early to prevent any territorial or protective behaviors later on.
Whether training for obedience, agility, or herding, females excel in all areas when given the proper guidance and environment. They are very responsive and willing to engage in a variety of activities, especially if these activities are mentally stimulating. Female Shelties enjoy learning new things and can develop strong bonds with their handlers, making them highly effective in obedience trials and other competitive sports. Their gentle and affectionate nature can also make training a more enjoyable and rewarding experience for both the dog and their owner.
Health & Care
The health and care of both male and female Shetland Sheepdogs are essential to ensuring they live long, happy lives. Like many other breeds, Shelties are prone to hip dysplasia, collie eye anomaly, and von Willebrand’s disease, a blood disorder that affects both males and females. However, males may also be more prone to certain genetic conditions like thyroid issues and certain cancers. Regular veterinary checkups, vaccinations, and health screenings are important to keep your Sheltie in top shape. Proper nutrition and regular exercise are key for both genders, as Shelties are highly energetic and require ample mental and physical stimulation to stay healthy and content.
Female Shelties, in particular, may also experience hormonal fluctuations due to heat cycles or pregnancy, which can affect their overall health and behavior. Spaying or neutering your Sheltie can help prevent many of these issues, including reducing the risk of ovarian cancer or unwanted pregnancies. Regardless of gender, Shetland Sheepdogs require regular grooming to maintain their long, double-layered coat, which can be prone to matting and shedding. Ensuring that they are brushed regularly and given routine baths will help keep their coat healthy. Both males and females benefit from consistent healthcare, including heartworm prevention, flea treatments, and good dental care.
Breeding
When considering breeding a Shetland Sheepdog, it’s important to carefully evaluate the health and temperament of both the male and female dogs. Male Shelties are often preferred for breeding due to their ability to sire many litters. However, it’s crucial that the male is in top health and free from genetic disorders like hip dysplasia or thyroid issues, which could be passed on to offspring. Females, on the other hand, should only be bred if they are in excellent health and have undergone genetic testing to ensure they won’t pass down hereditary diseases. Both males and females should undergo routine vet checks to ensure they are fit for breeding.
Breeding should never be taken lightly, and it’s essential that both the male and female Shelties are carefully monitored throughout the process. Females typically go into heat about twice a year, and managing these cycles is key to preventing accidental pregnancies. Additionally, the stress and physical toll of pregnancy and whelping (giving birth) should not be underestimated. A well-bred litter should have both parents involved in the process to ensure the health and temperament of the puppies. When done responsibly, breeding can contribute to the continued success of the breed and the health of future Shelties.

Which Sex Is Right for You?
Choosing between a male or female Shetland Sheepdog ultimately depends on your specific lifestyle and preferences. Males may exhibit more dominant or independent behaviors, and they can be more prone to marking and wandering, especially if they are not neutered. On the other hand, females are often more affectionate and gentle, especially during periods of heat or pregnancy, but they can also become more protective. If you are looking for a loyal companion who is a little more affectionate, a female might be the right fit. However, if you are looking for a more active dog that may be a bit more independent, a male Sheltie could be a great choice.
Another consideration when choosing the right sex is your level of experience with dog training. Male Shelties can sometimes be a bit more dominant and may require more consistent training to ensure they remain well-behaved. Female Shelties, while still intelligent and eager to please, might respond better to gentle, affectionate training techniques. Ultimately, both male and female Shelties can make wonderful pets, so it comes down to which personality traits best align with your home and lifestyle. Whichever sex you choose, Shetland Sheepdogs are sure to bring joy, energy, and affection into your life.
How big is a female Sheltie?
A female Sheltie usually stands between 13–16 inches tall at the shoulder, which is pretty much the perfect size for a lapdog that also loves to run around. They’re small enough to fit comfortably in a cozy corner of your couch but still large enough to be sturdy when they’re out on those energetic walks or play sessions. Weight-wise, they tend to fall between 11–24 pounds—so not too big to knock things over but definitely not small enough to be a toy either. Perfect balance, right?
What is the temperament of a female Sheltie?
If you’re looking for a dog that’s affectionate, gentle, and always by your side, a female Sheltie might just be your new best friend. They have that nurturing side, which makes them great with kids and family. Sure, they can be a little bit on the shy side at first, but once they warm up to you, they’re your loyal shadow. Expect a high-energy pup, though! They were bred to herd, so it’s in their nature to keep busy and alert. And don’t be surprised if they’re a bit of a drama queen when they’re in heat, as their personality can shift a bit during those times. But overall, they’re sweet, affectionate, and never too far from your side.
Are boy or girl Shelties better?
Ah, the classic debate: boy vs girl Shelties. In reality, both have their charm! Males tend to be a bit more independent and territorial, while females are often more affectionate and gentle—although that can vary depending on training and individual personalities. If you’re looking for a more relaxed dog that loves cuddles, a female Sheltie might win your heart. But if you’re into a dog that has a bit more of a dominant streak (hello, alpha dog!), a male Sheltie might be your perfect match. Honestly, it’s less about gender and more about the individual dog. But, we won’t lie, males might just have a little more swagger.
What are the cons of owning a Sheltie?
As much as we love these little fluffballs, Shelties do come with a few challenges. First off, their long coats require a fair bit of maintenance. You’ll need to invest some time in grooming to avoid the dreaded mats and tangles. And let’s not forget their high energy—they were bred to herd, so expect them to need a lot of exercise and mental stimulation. If you’re not giving them enough to do, they’ll find something to herd, and that something could be your shoes, your socks, or your toddler (no kidding, they might try to “herd” the kids). Another downside? Shelties can be a little too alert. They’ll bark at anything that moves, making them excellent watchdogs, but also slightly annoying when that squirrel in the yard becomes the enemy of world peace.
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