Eyelashes grow in a cycle with three distinct phases: anagen (growth), catagen (degradation), and telogen (resting). In the first phase, eyelashes begin to grow at a rate of about 0.12-0.14 mm per day, reaching an average length of about 12 mm. This phase can last 4-10 weeks on average. In the degradation phase, fully grown eyelashes eventually fall out. The entire life cycle of an eyelash can take almost a year, varying depending on many factors.

Like hair, eyelashes fall out naturally, but there are other causes as well.

Alopecia areata: This condition can cause significant hair loss not only on the scalp but also in other areas, including eyelashes, due to a chronic or acute autoimmune disease. Acute cases can be triggered by stressors like surgery, illness, and anemia, but eyelashes usually grow back. In individuals with chronic or long-term alopecia areata, eyelashes may be lost permanently or regrow at a slower rate. Trimming eyelashes does not damage the follicles, so they will grow back.

Irritation: Allergies to cosmetics and other beauty products can cause irritation leading to eyelash loss. Discontinue use of any product suspected of causing irritation around the eyes.

Infection: Infections can also cause irritation and eyelash loss.

Blepharitis: This is an inflammation of the oil glands of the eyelashes. Symptoms include swelling and redness of the eyelids, causing eyelash loss.

The impact of false eyelashes: False eyelashes are held in place with glue, which can pull out natural lashes upon removal.

Mental health conditions: Trichotillomania is a psychological condition that causes individuals to pull out their eyelashes as a coping mechanism for stress.

Thyroid disorders: Individuals with thyroid problems may experience hair and eyelash loss.

Skin cancer: Cancer is not a typical cause of eyelash loss, but in rare cases, it can be a symptom of eyelid cancer.

Medication: Some medications can cause unwanted side effects such as hair and eyelash loss. This is also a common side effect of chemotherapy.

Nutritional deficiencies: Eyelash loss can also be due to nutritional deficiencies. Addressing these deficiencies can help prevent further hair or eyelash loss.

Symptoms of eyelash loss that warrant a doctor's visit include: Loss in both eyelids or excessive, prolonged loss; Loss accompanied by hair loss elsewhere; Eyelash loss accompanied by skin changes; Vision loss, irritation, or discomfort around the eyes; Damage to hair follicles or slow regrowth.

The American Academy of Ophthalmology recommends maintaining good hygiene to prevent eyelash loss. This includes washing your face daily, using gentle, non-irritating cosmetic products, and avoiding heavy moisturizers around the eyes. Individuals should also maintain a healthy diet with fruits, vegetables, and protein-rich foods.

Avoid rubbing or pulling eyelashes. Eyelashes will usually grow back if the damage is minor, such as accidentally pulling out an eyelash or a small injury to the eyelid. However, pulling can slow down regrowth.

Bao Bao (Theo Very Well Health)