Under normal circumstances, eyelashes will grow back if they fall out. However, if inflammation of the lid margin occurs, this is a different story. I. Scaly blepharitis, a chronic inflammation caused by seborrhea at the lid margin, causes lashes to fall out easily but can be regenerated. Second, ulcerative blepharitis is a chronic, or subacute, purulent inflammation of the eyelash follicles and their accessory glands, mostly caused by Staphylococcus aureus infection, or it can become ulcerative blepharitis from a scaly blepharitis infection. Small pustules are scattered at the roots of the eyelashes, covered by scabs, and the eyelashes are often cemented into bundles by dried scabs, which are removed to reveal the roots of the eyelashes and small, shallow ulcers. The eyelash follicles are destroyed by the infection and the lashes tend to fall out with the scabs and cannot regenerate, resulting in bald eyelashes. After the ulcer heals, the scar tissue shrinks, causing the eyelashes to grow in a different direction, resulting in a disorganized eyelash growth. If it reverses to the cornea, it can cause damage to the cornea. Longer disease can cause chronic conjunctivitis and hypertrophic deformation of the lid margin and ectropion of the lid margin, leading to tear overflow.