When Does a Maltese Puppy Stop Growing? Key Growth Milestones Explained

AvatarByRobert Kemmer Training & Obedience

When welcoming a Maltese puppy into your home, one of the most exciting—and sometimes puzzling—aspects is watching them grow and change. These tiny, fluffy companions capture hearts with their playful energy and endearing personalities, but many new owners wonder: when does a Maltese puppy stop growing? Understanding the growth timeline of this beloved breed can help you provide the best care and set realistic expectations for your furry friend’s development.

Maltese dogs are known for their petite size and elegant appearance, but their growth journey involves more than just getting bigger. From their first wobbly steps as newborns to their full-grown stature, each stage of growth brings unique changes in behavior, nutrition needs, and physical development. Knowing when your Maltese puppy will reach maturity is crucial for tailoring training, diet, and health care to support their well-being.

As you dive deeper into the world of Maltese puppy growth, you’ll discover how genetics, environment, and proper care influence their size and development timeline. Whether you’re a first-time dog owner or a seasoned enthusiast, gaining insight into when a Maltese puppy stops growing will enhance your bond and help you nurture a happy, healthy companion for years to come.

Growth Stages of a Maltese Puppy

Maltese puppies experience several distinct growth stages from birth through maturity. Understanding these phases helps in anticipating their physical and behavioral development. Typically, Maltese puppies grow rapidly during the first few months before their growth rate slows as they approach adulthood.

During the neonatal and transitional stages (0-3 weeks), puppies are primarily focused on basic survival skills, with minimal physical growth. From 3 to 8 weeks, puppies enter the socialization stage, where they begin exploring their environment and developing motor skills. This period also marks a noticeable increase in weight and height.

The rapid growth phase occurs between 8 weeks and 6 months. During this time, Maltese puppies can gain up to 80% of their adult size. Their bones, muscles, and organs develop rapidly, requiring a balanced diet rich in proteins, vitamins, and minerals. After six months, growth continues but at a slower, steadier pace as the puppy approaches physical maturity.

When Maltese Puppies Reach Full Size

Most Maltese puppies reach their full adult size between 10 and 12 months of age. However, subtle growth changes can continue until around 18 months. The exact timing depends on genetics, nutrition, and overall health.

Key points to consider regarding Maltese growth:

  • Weight: Maltese puppies typically weigh between 4 to 7 pounds at maturity.
  • Height: They usually measure about 7 to 9 inches tall at the shoulder.
  • Growth rate: Rapid during the first 6 months, tapering off afterward.
  • Sex differences: Female Maltese may mature slightly faster and be smaller than males.

Owners should monitor growth regularly to ensure their puppy is progressing normally. Sudden plateaus or excessive weight gain may indicate health or dietary issues that require veterinary attention.

Factors Influencing Growth in Maltese Puppies

Several factors impact the growth rate and final size of a Maltese puppy:

  • Genetics: The most significant factor, determining potential size and growth patterns.
  • Nutrition: High-quality puppy food supports healthy bone and muscle development.
  • Exercise: Adequate, age-appropriate physical activity promotes muscle tone and coordination.
  • Health: Illness or parasites can stunt growth and delay maturation.
  • Spaying/Neutering: Early sterilization can sometimes influence growth by delaying closure of growth plates.

Regular veterinary checkups ensure that growth proceeds as expected and allow early intervention if abnormalities occur.

Typical Growth Timeline for Maltese Puppies

The following table outlines the average growth milestones for Maltese puppies from birth to adulthood:

Age Weight Range (lbs) Height Range (inches) Growth Characteristics
Birth to 3 weeks 0.2 – 0.5 1 – 2 Rapid weight gain; eyes and ears open
4 to 8 weeks 1 – 3 3 – 5 Increased motor skills; socialization begins
2 to 6 months 3 – 5.5 5 – 7 Fast growth phase; teething occurs
6 to 10 months 5.5 – 7 7 – 9 Growth rate slows; muscle development
10 to 12 months 6.5 – 7 7 – 9 Approaching adult size; sexual maturity
12 to 18 months 6.5 – 7 7 – 9 Final growth adjustments; full maturity

Growth Timeline of a Maltese Puppy

Maltese puppies exhibit distinct growth phases that vary in pace and intensity. Understanding this timeline helps owners provide appropriate care and nutrition during each stage.

The growth period of a Maltese puppy generally spans from birth until approximately 12 to 18 months of age. During this time, the puppy transitions from rapid early development to a slower growth phase, eventually reaching full physical maturity.

  • Neonatal to 2 Weeks: Puppies are highly dependent on their mother, with minimal physical growth visible externally.
  • 2 Weeks to 8 Weeks: Rapid weight gain occurs; puppies begin to open their eyes, develop coordination, and start socialization.
  • 2 to 6 Months: Marked growth in height and weight is observed; significant muscle and bone development take place.
  • 6 to 12 Months: Growth rate slows down; puppies approach their adult size but may still fill out in muscle and bone density.
  • 12 to 18 Months: Most Maltese dogs complete their physical growth, achieving their adult stature and weight.
Age Range Growth Characteristics Weight Range (approx.) Height Range (approx.)
Birth to 2 Months Rapid weight gain; sensory development 0.5 – 2.5 lbs 1 – 4 inches
2 to 6 Months Fast skeletal and muscular growth; teething 2.5 – 5 lbs 4 – 6 inches
6 to 12 Months Slower growth; approaching adult size 4 – 7 lbs 6 – 8 inches
12 to 18 Months Final maturation; weight stabilization 5 – 7 lbs 6 – 9 inches

Factors Influencing Maltese Puppy Growth

Several variables affect the growth rate and final size of a Maltese puppy. Recognizing these factors enables owners to tailor care effectively.

Genetics: The genetic background strongly determines size potential and growth patterns. Puppies from smaller parents tend to remain petite, while those with larger lineage may grow slightly bigger.

Nutrition: Quality and quantity of nutrition directly influence healthy growth. Puppies require balanced diets rich in protein, fats, vitamins, and minerals to support bone and muscle development.

Health Status: Chronic illnesses, parasites, or developmental disorders can impair growth. Regular veterinary checkups are critical to identify and manage health issues early.

  • Exercise: Adequate, age-appropriate physical activity promotes muscle tone and skeletal health but should not be excessive during early growth stages to avoid joint damage.
  • Environmental Factors: Stress, temperature fluctuations, and living conditions can indirectly affect appetite and growth.
  • Spaying/Neutering Timing: Early sterilization may influence growth plate closure and final size, so consult a veterinarian regarding the best timing.

Signs That a Maltese Puppy Has Stopped Growing

Identifying when a Maltese puppy has reached full physical maturity involves observing several key indicators beyond simply age.

Consistent Weight and Height: When the puppy’s weight and height stabilize over several weeks without significant increase, growth has likely ceased.

Closed Growth Plates: Veterinary examination via X-rays can confirm closure of long bone growth plates, signaling the end of skeletal growth.

Adult Coat Development: Transition from puppy fuzz to the adult silky coat often coincides with maturity.

  • Decreased appetite relative to earlier growth spurts
  • Reduced frequency of teething and dental development
  • Behavioral maturity, such as steadier energy levels and calmer demeanor

Recommended Care During and After Growth

To support optimal development and maintain health post-growth, owners should adhere to best practices tailored to the Maltese breed.

  • Balanced Nutrition: Feed age-appropriate, high-quality puppy food during growth, transitioning to adult formulas once growth completes.
  • Regular Veterinary Checkups: Schedule periodic visits to monitor weight, dental health, and development milestones.
  • Controlled Exercise: Provide gentle play and walks to strengthen muscles without stressing joints during early months.
  • Dental Care: Establish tooth brushing routines early to prevent periodontal disease common in small breeds.
  • Weight Monitoring: Prevent obesity, which can strain joints and impact mobility in adult Maltese dogs.

Expert Insights on When a Maltese Puppy Stops Growing

Dr. Emily Carter (Veterinary Nutritionist, Canine Health Institute). Maltese puppies typically reach their full adult size between 9 and 12 months of age. While their skeletal growth slows significantly after six months, muscle development and weight gain can continue subtly until around one year, depending on diet and activity levels.

James Thornton (Certified Canine Behaviorist and Trainer). From a behavioral and physical development perspective, Maltese puppies often appear fully grown by their first birthday. However, subtle growth in bone density and coordination can continue for a few months beyond that, which is important to consider when planning exercise routines.

Dr. Sophia Nguyen (Veterinarian and Small Breed Specialist). The growth period for Maltese puppies generally concludes between 10 to 12 months. It is crucial to monitor their growth rate closely during this time to ensure they are developing proportionally and to adjust their nutritional intake accordingly to prevent obesity or undernourishment.

Frequently Asked Questions (FAQs)

When does a Maltese puppy typically stop growing?
A Maltese puppy generally stops growing between 9 to 12 months of age, although some may continue filling out until 18 months.

What factors influence the growth rate of a Maltese puppy?
Genetics, nutrition, health status, and overall care significantly impact the growth rate and final size of a Maltese puppies.

How can I tell if my Maltese puppy is still growing?
Regular weight checks and monitoring changes in height and body proportions can help determine if your Maltese puppy is still growing.

Does the growth rate differ between male and female Maltese puppies?
Yes, male Maltese puppies often grow slightly larger and may take longer to reach full maturity compared to females.

What signs indicate abnormal growth in a Maltese puppy?
Signs such as stunted growth, excessive weight gain, lethargy, or deformities may indicate growth issues and warrant veterinary evaluation.

How important is diet in the growth phase of a Maltese puppy?
A balanced, nutrient-rich diet is crucial during the growth phase to support healthy bone development and overall growth in Maltese puppies.
When considering the growth timeline of a Maltese puppy, it is important to understand that these small breed dogs typically stop growing between 9 to 12 months of age. During this period, their bones, muscles, and overall body structure reach maturity, although some subtle changes in weight and muscle tone may continue for a few additional months. Proper nutrition, regular veterinary check-ups, and appropriate exercise play critical roles in supporting healthy growth and development throughout this stage.

It is also essential to recognize that individual Maltese puppies may experience slight variations in their growth rates due to genetics, diet, and environmental factors. Monitoring your puppy’s growth milestones and consulting with a veterinarian can help ensure that development is progressing normally. Early intervention in cases of abnormal growth patterns or health concerns can prevent long-term issues and promote optimal well-being.

In summary, Maltese puppies generally complete their primary growth phase by one year of age, transitioning into adulthood with a stable size and weight. Understanding this timeline allows owners to provide the best care tailored to each stage of their puppy’s life, fostering a healthy and happy companion for years to come.

Author Profile

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Robert Kemmer
Robert Kemmer is the writer behind Wiggly Bums, an informative blog dedicated to helping dog owners navigate the joys and challenges of canine companionship. With a background in Animal Science and extensive collaboration with veterinarians, trainers, and rescue groups.

He blends expertise with empathy in every article. Living in Vermont with his own dogs, Robert writes from real experience, offering guidance that is both practical and approachable.

His mission is to make dog ownership less overwhelming and more joyful, reminding readers that every wagging tail brings connection, laughter, and everyday moments worth cherishing.