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Dog Breeds

Male vs Female Boston Terriers: The Differences (With Info & Pictures)

Hallie Ballard
By Hallie Ballard · Reviewed & fact-checked by Dr. Paola CuevasVet Approved
Dr. Paola Cuevas
Reviewed & Fact-Checked byDr. Paola CuevasVeterinarian
Dr. Paola Cuevas is our Senior In-House Veterinarian at Dogster and Pangolia. She has over 19 years of experience working with an array of species and loves sharing her knowledge and experience with our readers and aims to provide assistance with any issue presented by your non-human family members. She received her degree from the University of Guadalajara, Mexico.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on July 16, 2026
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Male vs Female Boston Terrier

You might be familiar with this dog’s nickname, the American Gentleman, which is a perfect way to describe the temperament of this breed. The Boston Terrier is a small, playful, and friendly dog. Many first-time pet owners gravitate towards their even-tempered attitude but find themselves wondering whether they should buy a male or female.

Both male and female Boston Terriers are intelligent and affectionate animals. Still, there are differences between sexes, even if only minor. These small characteristics could impact your experience raising a new pet.

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Male vs Female Boston Terriers: Visual Differences

Image Credit: Left- bubutu, Shutterstock | Right - Eve Photography, Shutterstock

At a Glance

Male Boston Terrier

  • Average height (adult): 15–17 inches
  • Average weight (adult): 10–25 pounds
  • Average price: $1,500–$2,000
  • Lifespan: 13–15 years
  • Overall build: Bulky with more muscle mass

Female Boston Terrier

  • Average height (adult): 14–16 inches
  • Average weight (adult): 9–20 pounds
  • Average price: $1,200–$1,800
  • Lifespan: 13–15 years
  • Overall build: Typically slightly less robust than males
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Boston Terriers 101

It’s hard not to love Boston Terriers after you spend time with their loving and affectionate personalities. Distinguishing the differences between males and females is a bit easier when comparing physical characteristics as opposed to personalities. Males tend to be taller and weigh more, while females are typically slightly less robust than males. If you want to really start picking out the minor details, take a closer look at each sex.

Male Boston Terrier Overview

Image Credit: Lenka N, Shutterstock

Temperament & Hormone-Influenced Behaviors

Boston Terriers are friendly, social, and highly people-oriented dogs that thrive on companionship and interaction with their families.

Some behavioral differences between males and females may be influenced by sex hormones, particularly testosterone. Intact males are more likely to display behaviors such as urine marking, mounting, roaming, and increased interest in other dogs, especially females in heat. These behaviors are hormonally influenced rather than personality traits.

Neutering can reduce or modify some of these behaviors, particularly roaming, marking, and mounting, although it does not change a dog’s core temperament or learned behaviors. The degree of change varies depending on the individual dog and the timing of the procedure.

Health & Care

Boston Terriers have a flat face that contributes to some of their most common health issues. Both males and females suffer from respiratory problems.

Intact males may develop conditions influenced by testosterone, such as benign prostatic hyperplasia (BPH), which is an age-related enlargement of the prostate. This condition can lead to signs such as difficulty defecating, blood in the urine, or changes in urination patterns.

Testicular diseases, including testicular tumors, can occur in intact males, particularly as they age. Neutering eliminates the risk of testicular disease and significantly reduces the risk of hormone-related prostate conditions.

Pros

  • Affectionate
  • Non-aggressive
  • Friendly
  • Good family dog

Cons

  • More likely to react if provoked
  • Intact males may also be more prone to roaming behavior
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Female Boston Terrier Overview

Image Credit: bubutu, Shutterstock

Behavior & Temperament

Boston Terriers are friendly, social, and people-oriented dogs that enjoy being part of family life. In females, some behaviors may be influenced by reproductive hormones. Intact females go through heat cycles, which can lead to temporary changes such as restlessness, vocalization, or shifts in how they interact with other dogs. These changes are temporary and linked to the heat cycle rather than fixed personality traits.

Spaying eliminates heat cycles and the behaviors associated with them, though it does not change a dog’s core temperament. The extent of change can vary between individuals.

Outside of hormone-related influences, differences in temperament between male and female Boston Terriers are generally subtle. Socialization, training, genetics, and environment play a much larger role in shaping behavior than sex alone.

Health & Care

Female Boston Terriers have small pelvises and broad heads that contribute to some of their difficulty giving birth. C-section is often the required form of delivery to ensure the health of the mother and her puppies. This also makes breeding more difficult. Aside from these, she is prone to the same common health issues as male Boston Terriers.

Pros

  • Patient
  • Good family dog
  • Trainability
  • Independent

Cons

  • Pregnancy problems
  • Heat cycles (if not spayed), which may include bleeding, behavioral changes, and the need for management around male dogs
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Are Male or Female Boston Terriers Better for a Family?

This is a difficult question to answer because both males and females have their own sets of advantages and disadvantages. It’s always important to closely monitor your animals whenever there are children around. This is even more important with young children who can’t be taught how to treat a dog properly yet.

Boston Terriers of either sex can make excellent family dogs when properly socialized and trained. Rather than focusing on sex, it’s more helpful to consider the individual dog’s temperament, energy level, and how well they have been raised around children. Some Boston Terriers are very playful and energetic, while others are more relaxed, regardless of whether they are male or female. Consistent supervision and teaching children how to interact respectfully with dogs are key to creating a safe and positive relationship.

Image Credit: DavidRaifort, Shutterstock
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Male vs Female Boston Terriers: Which Gender Is Right for You?

After comparing the differences between male and female Boston Terriers, you’ve hopefully found a few things that are more appealing with one sex than the other. Take some time to think about how each of their temperament, energy level, and care needs could mesh with your lifestyle and what you want out of a companion. Just remember that each dog is an individual, and it’s possible that they don’t turn out at all how you expected.

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Featured Image Credit: Aneta Jungerova, Shutterstock (top); Avi's Colors, Pixabay (bottom)

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