Borderline personality disorder (BPD) is a severe mental illness that causes unstable moods, behaviour, and relationships. It usually begins during adolescence or early adulthood .
Most psychiatric disorders cause a permanent abnormal social behaviour, whereas borderline personality disorder only causes brief psychotic episodes. As a result, experts believe this is an atypical mental illness that can be misleading .
According to a 2015 study undertaken by French psychiatrist Lionel Cailhol, BPD is equally common in both genders. Nonetheless, in clinical populations, females represent 75% of all patients. Some experts believe this is due to men having difficulty seeking help, especially in psychotherapy .
BPD usually appears during late adolescence. However, clinicians recommend that a diagnosis should not be made before the age of 18 years. Patients should be treated later on when the symptoms are clear and persistent.
The most common causes of BPD are believed to be early maternal separation and childhood trauma . However, identifying symptoms at an early stage or educating a child in a manner that could prevent BPD would spare the patient a lot of pain, time and money. As life-coach Tami Green explains in one of her talks, a good way of avoiding BPD is to accept people and their flaws without trying to change them. She gives an example of a very sensitive child that is pressured by their parents to become tougher and bearable, however the pressure violates this child to the core of who they are. It can be very difficult to handle this sort of conversation without criticizing them. 
It is particularly hard for families of adolescents, because they need to help their children cope with their behaviour, provide them with help, and teach them to manage their risk-taking behaviour. Besides the many challenges that young people face, adolescents suffering from BPD can be very vulnerable and difficult to handle .
BPD symptoms evolve over time, however, here is a list of a few common symptoms that teenagers face:
- Para-psychotic manifestations
- Risky sexual behaviour
- Regression linked to treatment
- Counter-transference problems, “special” treatment relations
- Abuse, dependence on psychoactive substances
- Repeated suicide attempts
- Severe identity disorder 
One of the best therapies that helps patients to cope with BPD is Dialectical Behavioural Therapy (DBT). This method consists of a cognitive-behavioural approach that emphasises the psycho-social aspects of treatment. DBT is conceived for people that are prone to react in a more intense and out-of-the-ordinary manner toward certain emotional situations, primarily those found in romantic, family and friend relationships .
The Monsenso mHealth solution can help clinicians monitor and treat young patients suffering from BPD. In fact, the Mental Health Services in the Region of Southern Denmark (MHS) will soon begin clinical trials of a mobile coach app that supports DBT of BPD patients. To learn more about this project, click here!
 About Borderline Personality Disorder (BPD). National Education Alliance Borderline Personality Disorder
 Borderline Personality Disorder. National Institute of Mental Health.
 Borderline Personality Disorder in Adolescentes. L. Cailhol, L. Gicquel and J.P. Raynaud (2015)
 How BPD Forms in a Child. Video. T. Green (2009)
 An Overview of Dialectical Behavior Therapy. Psych Central Staff
 Borderline Personality Disorders: Signs, Symptoms and Treatment