Low self esteem is an important topic in BPD context, one we may not have talked here much in the recent past so it is worth a look.
BPD is a condition that is driven by multiple factors. It's symptoms, which may well change over time and situational, can resemble many other distinct mental illnesses that have other causes and that have a much clearer symptomatic profile. The root causes for BPD are deeper than low self esteem e.g. impulsiveness, splitting and tendency to invalidate happening often at times when the pwBPD is stressed and is losing control over emotions.
What is often common in people with low self esteem and pwBPD is anxiety, inner pain and higher levels of stress. Relieving LSE certainly can help a pwBPD and may reduce symptoms but won't fix a BPD itself. Whether all pwBPD suffer from low self esteem is not clear to me, some may have a too warped view of themselves or at least on the surface have dominating narcissistic thinking.
It is comfortable to think about LSE as a problem of pwBPD but what about us nons? I would argue that LSE can be a big driver for co-dependency. Overcoming LSE in ourselves is a step towards our healing. It requires examining ourselves and coming to terms with it - while this board certainly can benefit from LSE discussion and please post more of it one often finds LSE related insight on our
[L6] Personal Inventory and Self-awareness board which requires a certain post count.
A key mechanism for LSE is dysfunctional self talk provided by our "inner critic". It is quite difficult to convince that guy as it has perfect knowledge of our shortcomings and if that is not sufficient has the ability to make some convincing ones up. Direct attacks (mantra: I am great, I am great, I am great) are bound to fail as they are self invalidating. Disarming this critter is possible, may require deeper understanding of yourself, different thinking about yourself and possibly therapy. Some literature to get started:
Self-Esteem: A Proven Program of Cognitive Techniques... .- McKay M., Fanning P.