How to stop biting your lips

Why it sticks

Lip biting usually starts with a rough patch or dry skin and then becomes something your mouth does while you concentrate, worry or wait. The payoff is the smoothing feeling, or a small release of tension. Every bite leaves another rough edge, and the next rough edge is the next cue. It happens without thinking, so the first step is noticing it.

How to stop biting your lips

1. Keep your lips moisturised

   Lip balm several times a day removes the rough edges that start the habit. Keep one in every bag and by the bed. A balm with a taste or texture you notice also acts as a reminder.

2. Chew gum in the worst situations

   Sugar-free gum gives your mouth a job. Use it while studying, driving or in meetings, wherever the log says biting happens most.

3. Learn your cue

   Note when you catch yourself. Concentration, anxiety and screen time are the common cues. Knowing them lets you put the balm or gum in place beforehand.

4. Use a competing action

   When you notice, press your lips together gently, or rest your tongue on the roof of your mouth for a minute. That keeps the lips out of your teeth's reach and breaks the automatic loop.

5. Check for bite problems

   If you mostly bite the inside of your cheek by accident, especially while chewing, it may be your bite or a sharp tooth. A dentist can check.

6. Know when it is more than a habit

   Biting that breaks skin regularly or will not stop with these steps is a body-focused repetitive behaviour. Habit reversal training helps, and a GP can refer you.

What to track instead

A row that only records the habit not happening gets a tick on the days you were never tempted, and tells you nothing on the day it mattered. Give the row to the replacement:

• Lip balm three times a day
• Gum while studying
• Tongue on roof of mouth
• Water bottle at the desk

Print a tracker with these 4 habits or open them in a spreadsheet.

Your first week

1. Day 1. Buy two lip balms and put one in your bag and one by the bed.
2. Day 2. Note when you catch yourself biting today.
3. Day 3. Chew gum during the situation from your list.
4. Day 4. Practise the competing action whenever you notice.
5. Day 5. Drink water at your desk all day.
6. Day 6. Check your lips in the mirror and note the progress.
7. Day 7. Book a dentist check if you mostly bite your cheeks.