From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
A close up of the human unibrow. Not all unibrows are similar, the unibrow pictured above also has hair between the eyes.

A unibrow (or jacco brow; called synophrys in medicine) is a single eyebrow created when the two eyebrows meet in the middle above the bridge of the nose.[1] The hair above the bridge of the nose is usually of the same color and thickness as the eyebrows, giving the appearance that they converge to form one uninterrupted line of hair.


The first known use of the word 'unibrow' was in 1988.[2]

Culture and beauty[edit]


A unibrow is considered as a sign of beauty in Arab culture. Its popularity causes women to draw a black line joining the brows as a part of their routine makeup to fake a unibrow. A study found the prevalence of synophrys to be at 11.87% in the Omani population.[3]


In Tajikistan,[4] a unibrow is viewed as an attractive quality in both men and women. For women, it is associated with virginity and purity and, in men, virility. If there is no unibrow present, or if it is weak, it is commonplace for women to use a kohl liner or a modern kajal pen to simulate a unibrow.



The unibrow is a recessive genetic trait.[5]

Medical conditions[edit]

A unibrow is part of normal human variation, but can also stem from developmental disorders. A unibrow is a recognized feature of Cornelia De Lange syndrome, a genetic disorder whose main features include moderate to severe learning difficulties, limb abnormalities such as oligodactyly (fewer than normal fingers or toes) and phocomelia (malformed limbs), and facial abnormalities including a long philtrum (the slight depression/line between the nose and mouth).

Other medical conditions associated with a unibrow include:

Cornelia de Lange Syndrome

See also[edit]


  1. ^ "confluent eyebrow". TheFreeDictionary.com. Retrieved 2016-02-02. 
  2. ^ "Definition of UNIBROW". www.merriam-webster.com. Retrieved 2016-02-02. 
  3. ^ Synophrys: Epidemiological Study.P.Kumar. Int J Trichology.2017;9(3):105-107. PMC 5596643.
  4. ^ Elder, Miriam (November 27, 2010). "Where the unibrow reigns". Global Post. Retrieved November 13, 2011. 
  5. ^ "Human Traits". faculty.southwest.tn.edu. Retrieved 2016-02-02.