The term "multiple-personality disorder" is an outdated and inaccurate term. The current and more accurate term for this condition is Dissociative Identity Disorder (DID). DID is a complex and chronic condition in which a person experiences the presence of multiple distinct identities or personality states, often referred to as "alters."
Regarding the use of pronouns for individuals with DID, it's essential to respect and use the pronouns preferred by each alter. Each alter within the system may have its own gender identity, name, and pronouns. As a result, it's crucial to address each alter individually and use the pronouns they identify with.
In many cases, people with DID may prefer "they/them" pronouns for some or all of their alters, while other alters may have different pronoun preferences (e.g., he/him, she/her). To ensure inclusivity and respect for the diversity within the individual's internal system, it's best to inquire about and use the pronouns preferred by each alter.
It's important to remember that DID is a complex and often misunderstood condition, and using the correct pronouns is just one aspect of providing appropriate support and understanding for individuals dealing with this disorder. Being compassionate, open-minded, and seeking education about DID can help create a supportive environment for those affected by the condition.