Why are My Eyelashes Shorter on One Eye?

Have you ever found yourself wondering, “Why are my eyelashes shorter on one eye?” It’s a common concern that many people share, often leading to moments of self-reflection in front of the mirror. The subtle yet noticeable difference in eyelash length can be puzzling, prompting questions about symmetry and the factors influencing lash growth. In this brief exploration, we’ll delve into the intriguing world of eyelashes and uncover some potential reasons behind the mystery of eyelashes being shorter on one eye.

The length of our eyelashes is primarily determined by a combination of genetic and environmental factors. It’s not uncommon for individuals to experience variations in hair growth, and the same applies to our delicate lashes. While some people may be genetically predisposed to have longer or more voluminous lashes, external factors such as sleeping habits, makeup removal techniques, or even subtle differences in the way we touch or rub our eyes can contribute to the disparity in eyelash length. So, if you’ve ever found yourself pondering the enigma of why your eyelashes appear shorter on one eye, the answer might just lie in this delicate dance between nature and nurture.

Why Are My Eyelashes Shorter on One Eye?

Eyelashes can be shorter on one eye due to a variety of reasons. Here are some key points:

  • Genetics: You may have inherited genes for shorter lashes on one eye.
  • Age: As we age, eyelash follicles can slow or stop producing, leading to a reduction in length and thickness.
  • Psychological factors: Stress can cause more lash hairs than normal to enter the resting phase, leading to hair shedding.
  • Diseases: Conditions like blepharitis, trichomegaly, and hypotrichosis can affect eyelash growth.
  • Eyelash life cycle: Each eyelash goes through a growth cycle that can vary in length, potentially leading to differences in lash length.
  • Physical damage: Overuse of makeup or eyelash curlers can damage the lashes and cause them to break or fall out.
  • Hormonal changes: Changes in hormone levels, such as during menopause, can affect eyelash growth.


Genetics plays a significant role in determining the length and thickness of your eyelashes. If you have inherited genes for shorter lashes from one or both parents, this could result in one eye having shorter lashes.


As we age, the eyelash follicles, which are the openings in the skin through which the lash grows, can slow or stop producing. This leads to a reduction in length, thickness, and even pigmentation of the lashes.

Psychological Factors

Stress can cause more of your lash hairs than normal to enter the ‘telogen’ or resting phase of the hair growth cycle. This type of hair loss is called telogen effluvium and can be caused by illness, emotional stress, or a significant event like surgery.


Certain diseases and conditions can affect the growth of your eyelashes. For instance, blepharitis, an inflammation of the eyelids, can cause eyelash thinning and loss. Trichomegaly, a condition characterized by increased eyelash length, can also affect the growth of your lashes. Hypotrichosis, defined as reduced hair density, can also affect eyelashes.

Eyelash Life Cycle

Each eyelash goes through a growth cycle that can vary in length. The daily growth rate of a lash is 0.12–0.14 mm, and the complete life cycle is from four to eleven months. If the growth cycle of the lashes on one eye is shorter than the other, this could result in one eye having shorter lashes.

Physical Damage

Overuse of makeup or eyelash curlers can damage the lashes, causing them to break or fall out. Waterproof mascara, for instance, can cause breakages if used over time. Similarly, pulling out your eyelashes with an eyelash curler can result in shorter lashes as they grow back.

Hormonal Changes

Changes in hormone levels, such as during menopause, can affect eyelash growth. Thinning eyelashes may indicate the onset of menopause. Hormonal imbalances can primarily impact the anagen phase of the eyelash growth cycle, leading to shorter lashes.

Why Are My Eyelashes Suddenly Shorter?

There could be several reasons why your eyelashes seem suddenly shorter:

  • Natural Shedding Cycle: Eyelashes have a natural growth cycle, typically lasting between five to eleven weeks. Like the hair on your scalp, they fall out and regrow regularly. You may have just noticed them during their shedding phase.
  • Makeup Use: Frequent use of mascara and eyelash curlers can lead to breakage and damage, making lashes appear shorter or causing them to fall out prematurely.
  • Removal Technique: Vigorous rubbing or using harsh makeup removers can cause eyelashes to break or fall out.
  • Health Issues: Sometimes, changes in eyelash length can be a sign of an underlying health condition, such as thyroid disorders or alopecia areata.
  • Dietary Deficiencies: Lacking certain nutrients in your diet can affect hair growth, including that of your eyelashes.
  • Age: As you age, hair growth can slow down, leading to shorter lashes over time.
  • Stress: High levels of stress can lead to hair loss, including the eyelashes.

Final Words

If you’ve noticed that your eyelashes are shorter in one eye, it could be due to a few localized factors. This asymmetry might result from uneven makeup application or removal practices, where one eye is subjected to more stress or friction. It’s also possible that sleeping habits, such as consistently resting on one side of your face, could contribute to lash loss or breakage on that particular eye. In some cases, a localized skin condition or eyelid infection could affect lash growth. To address this concern, consider evaluating your eye-related habits, and if the issue persists, seek advice from a healthcare professional for a tailored assessment and guidance.

Leave a Comment