Almost everyone has some degree of asymmetry on their face. ... Injury, aging, smoking, and other factors can contribute to asymmetry. Asymmetry that's mild and has always been there is normal. However, new, noticeable asymmetry may be a sign of a serious condition like Bell's palsy or stroke.

Why is my face so asymmetrical?

Some people may have more noticeable asymmetry than others. Factors such as aging, trauma, and lifestyle choices, such as smoking or sun exposure, may contribute towards asymmetry. If a person has always had asymmetrical features, there is no cause for concern.

Why are asymmetrical faces so attractive?

It has been postulated that levels of fluctuating asymmetry in human faces may be negatively related to components of fitness such as parasite-resistance; hence potential mates with low levels of asymmetry may appear more attractive. ... Our manipulations thus render naturally asymmetric features symmetrical.