Borderline personality disorder (BPD) is defined as a mood disorder that affects one's interaction and relationships with others. It generally develops during adolescence and persists into adulthood. It has been seen that those with a traumatic history of neglect or emotional, physical or sexual abuse are more prone to developing it. Though it affects people varyingly, these are some symptoms that help diagnose BPD:

1. Emotional instability - Intense feelings of rage, sorrow, anger, guilt and emptiness or loneliness are experienced by some sufferers of BPD. Extreme mood swings, lasting for a short span of time, are common in BPD. They may also have issues with their self-image where they cannot place themselves and don't know what they feel about themselves or who they are.

2. Disturbing thoughts - One may experience disturbed thinking and the range of severity is rather wide. One may question his or her existence and need constant reassurance to believe other, or hear voices that tell one to harm oneself or others. In some cases, hallucination and developing delusional beliefs become a common phenomenon that greatly upset the mental condition of the sufferer.

3. Impulsive behaviour - Indulging in impulsive behaviour is a common sign of BPD. Those suffering from BPD may develop suicidal tendencies and threaten to self-harm. Partaking in risky and irresponsible behaviour such as gambling, drinking, drug abuse, having unprotected sex with strangers, going on unrestrained shopping sprees and shoplifting are not uncommon for those with BPD.

4. Intense but unstable relationships - Sufferers of BPD live in a fear of abandonment and feel that the people they love might leave them. They make all possible efforts to prevent being left alone. They may beg, cling and track their loved ones to avoid being left alone. The opposite may also occur and sufferers might feel that they are being smothered by others. This results in actively pushing away loved ones. A combination of these feelings leads sufferers to give out mixed signals which are confusing and often hurts them and their loved ones. If you wish to discuss any specific problem, you can consult a Psychologist.