A member asked:

What age is a person old enough to be diagnosed with borderline personality disorder?

12 doctors weighed in across 4 answers
Dr. Pamela Pappas answered

Specializes in Psychiatry

Usually 18, but: Some adolescents can be diagnosed earlier if the behavior patterns have been consistently present for at least a year. Technically though, age 18 is the agreed-upon age because adolescents can be quite changeable before then.

Answered 2/25/2018

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Dr. Alan Ali answered

Specializes in Psychiatry

Personality Dx: Personality disorder diagnoses are given if the person reaches age 18 & any age thereafter.

Answered 6/28/2015

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Dr. Jerry Smith answered

Specializes in Clinical Psychology

Age 18: The diagnostic criteria require that an individual be at least 18 years old to diagnose a personality disorder. However, we have seen that many individuals who are diagnosed as having borderline personality disorder in adulthood were initially diagnosed with bipolar disorder as juveniles.

Answered 8/24/2015

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Dr. Andrew Berry answered

Specializes in Clinical Psychology

BPD: 18 typically, is the cutoff age, but it can be diagnosed earlier, provided symptoms last in excess of a year.

Answered 8/26/2015

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