Possible triggers of vocal cord dysfunction (VCD) [or paradoxical vocal fold motion (PVFM)] are often similar to asthma triggers. However, it is important to know that not all people who experience VCD have asthma.
The following are some common triggers for VCD:
- Upper respiratory infections
- Exposure to airborne irritants (e.g., pollution, chemicals, allergens)
- Post-nasal drip
- Gastroesophageal reflux (GER) or Gastroesophageal reflux disease (GERD)
- Laryngopharyngeal reflux (i.e., "silent reflux")
- Strong odors or fumes
- Cigarette/fire smoke
- Exercise/exertion
- Singing
- Laughing
- Environmental change (e.g., cold air, change in temperature or moisture)
- Heightened emotions
- Stress/anxiety/tension
