When do we need to worry about a low platelet count (thrombocytopenia)?

A low platelet count can be caused by many different medical conditions and non-psychiatric medications, which we won’t go into on this page. But, the reason mental health clinicians need to know about low platelet counts is that some psychiatric medications (e.g., valproate and other antiepileptics), excessive alcohol use,  vitamin B12 deficiency, and folate deficiency,…