Blepharitis - Causes

Not ready to share? Read other Patient Comments

If known, what was the cause of your blepharitis?

Share your story with others:

MedicineNet appreciates your comment. Your comment may be displayed on the site and will always be published anonymously.Patient Comments FAQs

Enter your Comment

Tell us a bit about your background to make your comments more useful to other MedicineNet users. (Optional)

Screen Name: *

Gender of Patient: Male Female

Age Range of Patient:

I am a: Patient Caregiver


* Screen Name will appear next to the published comment. Please do not include your full name or email address.

By submitting your comment, and other materials (collectively referred to as a "Submission") to MedicineNet, you grant MedicineNet permission to use, copy, transmit, publish, display, edit and modify your Submission in connection with its Web site. MedicineNet will not pay you for your Submission. You represent that you have all rights necessary for MedicineNet to use your Submission as set forth above.

Please keep these guidelines in mind when writing your comment:

  • Please make sure you address the question asked.
  • Due to the overwhelming number of comments received, not all comments will be published.
  • When selecting comments to publish, our staff will choose those that are educational and complement the topic. Please try to stay on topic.
  • Your comment may be edited. We would typically edit comments to make them clearer and more readable. We will remove personal information such as last names, email and web addresses, and other potentially harmful information.
  • We will not notify you if your comment has been published. We suggest that you check back on the topic article regularly.
  • We do not provide medical or healthcare advice, treatment, or diagnosis.

Thank you for participating!


I have read and agree to abide by the MedicineNet Terms and Conditions and the MedicineNet Privacy Policy (required).

To prevent our systems from spam, please complete the following prior to submitting your comment.

Please select the white triangle:

What causes blepharitis?

Blepharitis involves the eyelid margins, where the eyelashes grow and the openings of the tiny oil glands are located. There may be involvement of the skin adjacent to the outer edges of the eyelid margins and/or the inner edge of the eyelid that comes into contact with the eyeball secondary to the underlying disorder of the lid margins.

Most cases of blepharitis are posterior blepharitis, due to inflammation of the meibomian glands of the lids. There are about 40 of these glands in each of the upper and lower lids. The eyelid margins can become inflamed, irritated, and itchy when these glands produce abnormal secretions. Blepharitis is often seen in patients with acne rosacea, a generalized illness of oil glands.

Anterior blepharitis is due to inflammation of the lid margin around the lashes. Seborrheic blepharitis is similar to dandruff of the scalp. Staphylococcal blepharitis is a result of bacterial infection of the lashes. Microscopic mite infection causes demodex blepharitis.

Allergies due to reactions from  mascara, contact lens solutions, sprays, exposure to animals, environmental chemicals, or airborne allergens can also cause blepharitis.

Less commonly, inflammation of the lids can be caused by head lice.

Return to Blepharitis

See what others are saying

Comment from: sad eyes, 65-74 Female (Patient) Published: February 18

I think the cause of my blepharitis is the scarring and clogging of the meibomian glands in my eyelids, especially the lower lids. I have had surgery, but I still have severe tears, itching and redness in the eyes. This summer it was much better. Now in the northeast with the heat and dry air it is awful.

Was this comment helpful?Yes
Comment from: mjfrnkamj, 55-64 Male (Patient) Published: March 20

I was cleaning the toilet with a brush when I felt something hit me in the eye. I splashed water into my eyes from the wash basin and went to sleep. The next morning I noticed pain in my right eye and sensitivity to light; blepharitis.

Was this comment helpful?Yes

STAY INFORMED

Get the latest health and medical information delivered direct to your inbox!