I think it needs to be taken seriously. it does with us.

so how would this be handled? Would you tell therapist, pdoc, would they put you in hospital, what would happen?

*possible trigger warning*
I think that really depends on the situation. in our system there is one that frequently self-harms and threatens suicide. inside she can also be a bully sometimes. if she is "only" self-harming (I say only because she cuts pretty superficially usually) we usually let her get away with it to a certain extent because we know she won't actually hurt us, as long as she stays within limits. my therapist does know, however, but understands this about her. so she doesn't get overly uptight about it (that will really depend on your own relationship with your therapist).
if she is planning a suicide attempt, however, we def. have to tell someone and get help asap because she will act on it. in that case we are almost always hospitalized (kind of have a reputation with the police :(
I'm not sure what your situation is, so I'll try and cover what I know.
if she (or anyone else) is threatening another one of us we used to let it go. but my therapist is working on helping us to set boundaries inside as well. not something that anyone should be getting away. again, this is info that I trust my therapist with and know she will understand.

hope something there maybe helped.

I / we self harm in different ways but if one of us is suicidal then I use a recovery action plan that has phone numbers of people I can call for ride to hospital.... People in my face to face support group that understand and I trust.

If you don't already have a recovery action plan you may consider creating one

thank you guys for the wonderful advice. that helps with the thoughts. a question however, what is a recovery action plan? thanks again for being so nice :)

A recovery action plan is a plan/contract that you make up ahead of time for when you are in crisis. This can be like what John said, a list of trusted people to call for help, but it can also include actions that you or your others do when in danger of suicide, self harm, having triggers or anything else that is not good for you. One goal in therapy is to change behaviors that are damaging so these plans can be very useful in helping us remember more positive ways to deal with bad times or situations. It is hard to think when you are in crisis so it's good to have things set up in advance.

As AprilStar said, this does need to be taken seriously, just as any other threat to someone's safety. I would recommend finding a good therapist if you do not have one already. I would tell your therapist if you have one. This is an important part of communication with those inside. They would only put you in the hospital if you signed yourself in or if you were in danger. I think it is far better if you can handle it outside of the hospital, but if it is bad, then it might be necessary to go inpatient.

I'm not sure how co-conscious you are, but journaling where all people are allowed to write, can be a very useful tool for communication with everyone inside. Learning what their needs are will be important for therapy. Talking to the one who is threatening will help you learn what s/he is angry about and why threats are being made which is essential for behavior to change in the future.

Not that it matters much but we think the ideas that have been put orward are really good. Ultimately you need to discover why the individual is sel harming or having the suicidal idealization. Sometimes it is just to deal with the emotional pain, sometimes its just to act out as any attention is better than no attention and hardest to deal with is when they do so as they think it is the best way to keep everyone sae and secure. Imho I really think understanding the reason why they are doing it will determine the reaction one takes.

51 that's kind of where I am. I remember some things but not all I tend to not remember during others coming out, but one, I am guessing a control, I don't know the exact word to use, but she knew us all. she wrote about all of us. I guess she knew us all and she wrote everyone's name down and gave a little description. she also wrote that she had kept everyone from using any of their names. I guess they always kept the one to use except in a few instances when no one really paid attention anyway. thank you all I have a lot to think about. and I think I would rather cooperate with everyone than to destroy any of us. just want us happier and maybe all will agree. thanks for all the info. :)

we try to take it seriously also... some of us take it that way... there is one or two of my alters that are self harming and suicidal.... I will try to get pills out of a bottle and a lot will fall out and one of my alters automatically talks about taking an overdose... so we have a definite plan of action... I do let some self harming go on with the one that really doesn't want to die.. with the one that is in so much mental pain that wants to die, has lots of thoughts of suicide... my plan is in stages... stage one is realizing that I (we) have had the thought of it... and acknowledging it is a thought and could be very harmful... so I am on alert and, as hard as it is, tell someone that I trust that I have had the thought... and the second stage for me is the planning mode... this is much more dangerous to us...here I have to decide if we need to call a crisis hotline or my counselor.... and let them be on alert... and the dreaded last stage.... planning... this is red flag city for us!!! time to call 911 or get hubby to take me to the hospital... call my counselor and tell her and let her do her thing with the hospital and help me get there... I made this plan a long time ago because we have had suicide thoughts since we was a teen... so many years of attempts and hospitalizations has taught me and us to have this plan broken down into steps of notice... and my protector helps to intergrate the feelings and thoughts into something I can understand that the entire process is to protect ourselves at all cost... and too, we needed a plan of reasons to stay around...that can be anything that we value... like life, family, etc... hope that my plan helps you!!! B)