Ah — the “yellow crust when waking up” usually refers to the crusty gunk in the corners of your eyes after sleep. Here’s a clear breakdown of what it could mean:
1. What It Is
- Medically called “sleep,” “eye mucus,” or “rheum”
- Made of:
- Tears (water and mucus)
- Dust and skin cells
- Oil from glands in the eyelids
- Sometimes bacteria (harmless in most cases)
2. Why It Can Be Yellow
- Yellow or greenish color can indicate:
- Mild eye infection (bacterial conjunctivitis)
- Blocked tear ducts or gland secretions
- Allergies or irritation (less common for yellow color)
- Clear or whitish crust is usually normal.
3. When to Worry
Seek medical advice if you notice:
- Large amounts of yellow/green discharge
- Redness, swelling, or pain in the eyes
- Blurred vision or sensitivity to light
- Crust that keeps coming back or worsens
These could be signs of:
- Bacterial conjunctivitis (“pink eye”)
- Stye or blocked gland
- Other eye infections
4. How to Manage Mild Cases
- Wash hands before touching eyes
- Use a warm compress to soften and remove crust
- Clean eyelids gently with diluted baby shampoo or saline
- Avoid rubbing eyes
🧠 Bottom Line
- Some crust in the morning is normal
- Yellow crust can be harmless, but if persistent, thick, or accompanied by redness/pain, see an eye doctor
If you want, I can make a quick guide to morning eye crust: normal vs warning signs, so you can instantly tell when it’s nothing and when to see a doctor.
Do you want me to do that?
