Fussy Baby? When Do Babies Start Teething & Medical Relief Steps

If you have a suddenly fussy baby, drooling more than usual and chewing on everything in sight, you're probably asking: when do babies start teething?

Teething is a normal developmental stage, but it can be uncomfortable for babies and stressful for parents. The good news is that it's temporary, manageable, and usually not dangerous. Understanding the timeline, symptoms, and safe relief options can help you support your baby confidently.

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When Do Babies Start Teething?

Most babies start teething around 6 months of age. However, there is a wide range of normal.

• Some babies begin teething as early as 3 months
• Others may not get their first tooth until 12 months
• Rarely, babies are born with a tooth (called a natal tooth)

If your baby doesn't have a tooth by their first birthday, mention it at their routine check-up—but it's often still within normal limits.

Typical Teething Timeline

While every baby is different, teeth usually come in this general order:

1. Bottom front teeth (lower central incisors): 6–10 months
2. Top front teeth (upper central incisors): 8–12 months
3. Upper side incisors: 9–13 months
4. Lower side incisors: 10–16 months
5. First molars: 13–19 months
6. Canines (pointed teeth): 16–23 months
7. Second molars: 23–33 months

Most children have a full set of 20 primary teeth by age 3.

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Common Teething Symptoms

Teething can cause mild discomfort. Symptoms usually start a few days before the tooth erupts and ease once it breaks through the gum.

Common signs include:

• Increased drooling
• Swollen or tender gums
• Chewing on objects or fingers
• Mild irritability or fussiness
• Slight change in sleep patterns
• Mild decrease in appetite
• Rubbing cheeks or pulling ears

Some babies barely react. Others have a tougher time. Both are normal.

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What Teething Does Not Cause

It's important not to blame everything on teething.

Teething does not typically cause:

• High fever (over 100.4°F or 38°C)
• Severe diarrhea
• Persistent vomiting
• Widespread rash
• Extreme lethargy

If your baby has a high fever, ongoing diarrhea, or seems unusually ill, it's likely something else. In that case, you should speak to a doctor promptly.

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Safe and Effective Teething Relief

If you're wondering how to help your baby through this stage, there are several safe, evidence-based approaches.

1. Gentle Gum Pressure

Pressure can reduce discomfort.

Try:

• A clean finger gently rubbing the gums
• A firm (not liquid-filled) teething ring
• A chilled (not frozen) teething toy

Cold can help numb sore gums, but avoid frozen objects—they can damage delicate tissue.

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2. Cold Washcloth

A simple, effective remedy:

• Wet a clean washcloth
• Chill it in the refrigerator
• Let your baby chew on it

The texture and cool temperature can be soothing.

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3. Over-the-Counter Pain Relief (If Needed)

If your baby is very uncomfortable and other measures aren't enough, speak to your pediatrician about:

• Acetaminophen (Tylenol) for babies over 2 months
• Ibuprofen (Advil, Motrin) for babies over 6 months

Always:

• Use the correct dose based on weight
• Follow your doctor's instructions
• Avoid guessing or exceeding recommended doses

Never give aspirin to a child.

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4. Avoid Unsafe Teething Products

Some products marketed for teething can be harmful.

Avoid:

• Teething gels with benzocaine (linked to serious side effects)
• Homeopathic teething tablets with unclear ingredients
• Amber teething necklaces (choking and strangulation risk)
• Alcohol-based remedies

Stick to safe, simple solutions.

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Teething and Sleep Disruptions

Teething can temporarily disrupt sleep. Babies may:

• Wake more often
• Have trouble falling asleep
• Be harder to settle

This phase usually passes in a few days. Maintain your baby's bedtime routine as consistently as possible. Avoid introducing new sleep habits that you may need to undo later.

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When to Start Brushing

As soon as the first tooth appears, it's time to start oral care.

• Use a soft-bristled baby toothbrush
• Apply a smear (rice-sized amount) of fluoride toothpaste
• Brush twice daily

Even though baby teeth fall out, they are essential for:

• Proper speech development
• Nutrition and chewing
• Guiding adult teeth into place

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Can Babies Get Cavities?

Yes. Tooth decay can happen as soon as teeth appear.

Risk factors include:

• Falling asleep with a bottle (especially milk or juice)
• Frequent sugary drinks
• Not brushing regularly
• Sharing utensils that transfer bacteria

If you notice white spots, brown discoloration, or persistent bad breath on your child's newly erupted teeth, use Ubie's free AI-powered Dental Caries symptom checker to quickly assess whether your baby may need professional dental care.

Early prevention is far easier than treating cavities later.

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When to See a Doctor

Teething itself is normal and not dangerous. However, you should speak to a doctor if your baby:

• Has a fever over 100.4°F (38°C)
• Has persistent diarrhea or vomiting
• Refuses fluids and shows signs of dehydration
• Is unusually sleepy or difficult to wake
• Develops facial swelling
• Has bleeding gums that don't stop

These symptoms may indicate something more serious than teething.

When in doubt, it's always reasonable to call your pediatrician. Trust your instincts—you know your baby best.

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Emotional Impact on Parents

It's completely normal to feel overwhelmed during teething phases, especially if sleep is disrupted.

Remember:

• Teething discomfort is temporary
• Not every fussiness is your fault
• Some babies are simply more sensitive

If you feel frustrated, place your baby safely in their crib and take a short break. A few minutes to reset can make a big difference.

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Key Takeaways: When Do Babies Start Teething?

To recap:

• Most babies start teething around 6 months
• A range of 3–12 months can still be normal
• Teething may cause mild irritability, drooling, and gum discomfort
• High fever or severe symptoms are not typical of teething
• Safe relief includes cold washcloths, gum massage, and pediatrician-approved pain relievers
• Begin brushing as soon as the first tooth appears

Teething is a developmental milestone, not an illness. While it can be uncomfortable, it's a sign that your baby is growing exactly as they should.

If you're ever unsure whether symptoms are from teething or something more serious, speak to a doctor. Prompt medical care is essential for anything potentially life-threatening or severe.

With the right information and simple tools, you can navigate this stage calmly—and help your baby smile through it.