
Getting your wisdom teeth removed is a common procedure, but you might wonder about the risk of infection afterward.
Infection after wisdom teeth removal happens in about 1 out of every 100 patients (1%).
Most infections develop 3-7 days after surgery, though they can occur up to 4 weeks later. The good news? These infections are completely treatable when caught early and managed properly.
Understanding what to watch for can help you spot problems quickly and get the care you need. Let’s break down everything you need to know about post-extraction infections.
Quick Reference: Signs of Infection After Wisdom Teeth Removal
| Symptom | When to Be Concerned | Action Required |
| Pain & Swelling | Worsening after 2-3 days | Contact your oral surgeon |
| Discharge/Pus | Any pus from the extraction site | Immediate care needed |
| Bad Taste/Breath | Persistent metallic/foul taste | Call your oral surgeon |
| Fever | Temperature above 101°F | Urgent care needed |
| Continuous Bleeding | Beyond 24 hours | Contact your oral surgeon |
Table of Contents
What Does Infection Look Like?
Early Warning Signs (2-3 days after surgery)
Instead of getting better, you might notice:
- Pain that gets worse rather than improving
- Swelling that increases and spreads
- The area around your extraction site feels hot to touch
These early signs don’t always mean infection, but they’re worth monitoring closely.
Later Signs (3-7 days after surgery)
This is when most infections show up clearly:
- Bad taste or breath that won’t go away, even with gentle rinsing
- Discharge or pus coming from where your tooth was removed
- Persistent throbbing pain that pain medication doesn’t help much
- Swelling that spreads to your cheek, jaw, or neck
Serious Symptoms Requiring Immediate Attention
Call your oral surgeon right away if you experience:
- Fever and swollen glands in your neck
- Trouble opening your mouth (called trismus)
- Feeling generally unwell with chills or fatigue
- Severe pain that keeps getting worse
When Do Infections Usually Happen?
Most common timeframe: 3-7 days after your wisdom teeth removal procedure
Early infections: 1-2 days post-surgery (less common)
Delayed infections: 1-4 weeks after surgery (rare but possible)
Monitoring period: Your oral surgeon will typically want to keep an eye on your healing for up to 3-4 weeks
The first week after surgery is when you need to be most watchful. This is when your body is working hardest to heal, and it’s also when bacteria are most likely to cause problems.
What Causes These Infections?

Primary Causes
Poor oral hygiene tops the list. When you can’t clean around the extraction site properly, bacteria build up and can cause infection.
Bacterial contamination can happen during or after surgery, especially if food particles get stuck in the healing socket.
Dry socket complications occur when the blood clot that should protect your healing bone gets displaced or doesn’t form properly.
Risk Factors That Increase Your Chances
Several factors can make infection more likely:
- Smoking significantly increases your risk
- Complex extractions where the tooth was difficult to remove
- Impacted teeth that required more extensive surgery
- Not following post-operative instructions like avoiding certain foods or activities
According to the American Association of Oral and Maxillofacial Surgeons, following your surgeon’s care instructions dramatically reduces infection risk.
How Are These Infections Treated?
Antibiotic Therapy
When your oral surgeon prescribes antibiotics, taking the complete course is extremely important. Even if you feel better after a few days, finishing all your medication prevents the infection from coming back stronger.
Professional Treatments
Depending on how serious the infection is, your oral surgeon might need to:
- Drain the infected area to remove pus and bacteria
- Clean the extraction site thoroughly to remove any debris
- Perform surgical debridement for more severe cases
Supportive Care at Home
While professional treatment handles the infection, you can help your recovery with:
- Saltwater rinses (only when your surgeon says it’s okay)
- Pain management as directed by your oral surgeon
- Rest to help your body fight the infection
- Follow-up appointments to monitor your healing
Preventing Infection After Surgery
Following Post-Operative Care Guidelines
Your oral surgery team will give you specific instructions. These typically include:
- Taking prescribed medications exactly as directed
- Avoiding hard, crunchy, or spicy foods
- Not using straws for at least a week
- Keeping your head elevated when sleeping
Oral Hygiene Best Practices
- Brush your teeth gently, avoiding the extraction site
- Rinse very gently with salt water (after 24 hours)
- Don’t spit forcefully or swish vigorously
- Keep the rest of your mouth clean to prevent bacteria spread
Activities to Avoid
- Smoking (this is the big one – it dramatically increases infection risk)
- Using straws which can dislodge your blood clot
- Excessive rinsing in the first 24 hours
- Strenuous exercise for the first few days
Medication Compliance
Take all prescribed medications as directed, even if you feel fine. Antibiotics work best when taken consistently, and pain medications help you rest, which aids healing.
When Should You Contact Your Oral Surgeon?

Immediate Care Scenarios
Call your oral surgeon’s office right away if you have:
- Any discharge or pus from the extraction site
- Fever above 101°F
- Severe pain that suddenly gets much worse
- Bleeding that won’t stop after 24 hours
Normal vs. Concerning Symptoms
Normal healing includes: Some swelling that peaks at day 2-3, mild to moderate pain that gradually improves, slight bleeding for the first day
Concerning symptoms include: Increasing pain after day 3, bad taste that persists, swelling that spreads beyond the immediate area, any signs of pus or unusual discharge
Emergency Contact Information
Every oral surgery practice has after-hours contact information for urgent situations. Make sure you have these numbers before your surgery day.
Take Control of Your Recovery
Infection after wisdom teeth removal affects only about 1% of patients, and with proper care, these infections are highly treatable. The key is knowing what to watch for and acting quickly if you notice concerning symptoms.
Remember, your oral surgery team wants your recovery to go smoothly. Don’t hesitate to call with questions or concerns – it’s always better to check something that turns out to be normal than to wait when you might need treatment.
If you’re experiencing any signs of infection after your wisdom teeth removal at South Calgary Oral Surgery, Sunridge Oral Surgery, Mahogany Oral Surgery, or Airdrie Oral Surgery, or if you need to schedule your wisdom teeth consultation, contact Calgary Oral Surgery Group today.
Our experienced team at locations across Calgary and Airdrie is here to ensure your recovery goes as smoothly as possible.





