What to Expect When Your Puppy or Kitten Is Teething

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By Cottleville Animal Hospital | January 16, 2026

Bringing home a new puppy or kitten is an exciting and rewarding experience filled with cuddles, playtime, and early training milestones. As pet parents settle into a routine, one important developmental stage often appears sooner than expected — teething. While this phase is completely normal, it can involve increased chewing, mild discomfort, and behavioral changes that may catch first-time owners off guard. Understanding what to expect and how to support your pet during this time can make the transition smoother for everyone, especially for families caring for young pets in Cottleville, MO.

Teething affects puppies and kittens differently, but in both cases, proper guidance and attentive care are essential for long-term dental and overall health.

When Do Puppies and Kittens Start Teething?

Puppies typically begin teething around 3 to 4 weeks of age, starting with their baby (deciduous) teeth. By about 6 months old, most puppies have lost their baby teeth and developed a full set of adult teeth.

Kittens usually start teething at around 3 weeks of age as well, with adult teeth coming in between 4 and 6 months. During this time, their mouths may feel sore, which can lead to changes in chewing behavior and appetite.

This stage is a natural part of puppy and kitten care, but it does require monitoring to ensure teeth are erupting properly.

Common Signs of Teething in Puppies and Kittens

Teething symptoms can vary, but some signs are very common.

You may notice:

  • Increased chewing or biting on objects
  • Red or swollen gums
  • Mild drooling
  • Occasional irritability
  • Slight loss of appetite

In puppies, chewing may become destructive if they don’t have appropriate outlets. Kittens may gnaw on furniture edges, cords, or fingers. These behaviors are normal but should be redirected safely.

How to Help Your Teething Pet at Home

Supporting your pet through teething doesn’t have to be complicated. Providing appropriate tools and a safe environment can make a big difference.

Helpful tips include:

  • Offer age-appropriate chew toys
  • Use cold (not frozen) toys to soothe gums
  • Keep unsafe items out of reach
  • Avoid hard objects that could damage teeth

Never give bones, hard plastic, or household items that can splinter or break teeth. Proper supervision is key during this phase.

When Teething Isn’t Normal

While mild discomfort is expected, certain signs may indicate a problem. Retained baby teeth, infections, or abnormal tooth alignment can cause pain and long-term dental issues.

Contact your veterinarian if you notice:

  • Persistent bleeding
  • Severe swelling
  • Foul odor from the mouth
  • Difficulty eating
  • Baby teeth that don’t fall out

Early evaluation helps prevent complications and supports healthy oral development.

The Importance of Veterinary Guidance

Routine wellness visits during the first year allow your veterinarian to monitor dental development and overall growth. Teething is also a great time to establish good oral care habits and discuss preventive strategies.

At Cottleville Animal Hospital, the veterinary team helps pet owners navigate every stage of early development, offering guidance on dental health, nutrition, and behavior. This personalized approach supports comprehensive puppy and kitten care and helps pets grow into healthy adults.

Preparing for Lifelong Dental Health

Teething is temporary, but dental care is lifelong. Once adult teeth are in place, regular dental checkups, proper nutrition, and at-home care play an important role in preventing gum disease and tooth loss later in life.

Starting early helps pets become comfortable with mouth handling and oral care routines, making future veterinary visits easier and less stressful.

If you have concerns about your pet’s teething process or oral health, schedule your appointment at Cottleville Animal Hospital for professional guidance and compassionate care in Cottleville, MO.

FAQs: 

Q1. How long does teething last in puppies and kittens?
Ans. Teething usually lasts until about 6 months of age, when adult teeth are fully developed.

Q2. Is it normal for my pet to chew more during teething?
Ans.  Yes. Chewing helps relieve gum discomfort, but it should be redirected to safe toys.

Q3. Should I brush my pet’s teeth during teething?
Ans.  Gentle handling is fine, but brushing usually begins once adult teeth are present unless your veterinarian advises otherwise.

Q4. Can teething cause behavior changes?
Ans.  Yes. Mild irritability or restlessness is common due to gum discomfort.

Q5. What if my puppy’s baby teeth don’t fall out?
Ans.
  Retained baby teeth should be evaluated by a veterinarian, as they can cause dental problems.

Q6. When should I schedule a vet visit for teething concerns?
Ans.
  If symptoms seem severe, prolonged, or painful, a veterinary exam is recommended.

Emergency Appointments and New Furry Faces Are Welcome!