Multiple Personality Day – 5th March

National Multiple Personality Day is observed annually on March 5th.

Multiple Personality Day is a national holiday on 5th March. It is now referred to as Dissociative identity disorder (DID). DID is a mental disorder characterized by the maintenance of at least two distinct and relatively enduring personality states. The disorder is accompanied by memory gaps beyond what would be explained by ordinary memory issues.

You may know someone, maybe a friend or family member. that has been diagnosed with Multiple Personality Disorder.  If so, spend some extra time with them on National Multiple Personality Day.

According to the National Alliance of Mental Illness, only 2% of the United States experiences these symptoms and have been properly diagnosed. Originally, when it was called Multiple Personality Disorder, psychiatrists believed and diagnosed people with having at least two different personalities.

How common is DID?

DID is very rare. The disorder affects between 0.01 and 1% of the population. It can occur at any age. Women are more likely than men to have DID.

History Of National Multiple Personality Day:

Not much is known about this day’s history, but this day was founded for the people who have Multiple Personality Disorder and for them to come forward, share their struggles, and spread awareness.

Our research did not find the creator or the origin of this day. Perhaps, the creator assumed his other half would record it.



Lobbying for Mental Health Treatment

Activist Dorothea Dix lobbies for better living conditions for the mentally ill.


Earliest Known Diagnosed Case

Louis Vivet is diagnosed with having ‘multiple personalities,’ the first time the term is used.


The First Scientific Case Study

American neurologist Morton Prince starts studying ‘Christine Beauchamp’ whose real name was Clara Norton Fowler, one of the first diagnosed DID cases.


Dissociation of a Personality

Prince publishes a monograph of his six-year study of Fowler, considered a prototypical case of the disorder for several decades.


Push for Deinstitutionalization

Outpatient treatment begins, facilitated by the development of antipsychotic drugs.


National Mental Health Act

The U.S. government allocates funds to researching treatments for mental illness.


The National Alliance for the Mentally Ill

The alliance is established to provide support, education, advocacy, and research services for psychiatric illnesses.

How to celebrate Dissociative Identity Disorder Awareness Day

If you’re someone who has Dissociative Identity Disorder, help raise awareness by having a conversation with your friends and family about how it affects you in your daily life. Speak with your therapist about ways of managing the disorder.

  • Discover Yourself: The National Multiple Personality Day is a great opportunity for introspection and to discover your interests, passions, fears, and goals. You can take personality tests and quizzes to understand yourself better and share them with your friends.
  • Spread Awareness About Multiple Personality Disorder: You can use The National Multiple Personality Day as an occasion to spread awareness about Dissociative Identity Disorder, its treatment and the misconceptions about the people who suffer from it, and how to be compassionate towards them!
  • Share away!: You can share more information about The National Multiple Personality Disorder Day by using #MultiplePersonalityDisorder and #LookInside and share with your friends the knowledge and importance of this day while also encouraging them to participate in it!
  • Attend a seminar or read up about the disorder.
  • Show support for those with the disorder by sharing your newfound understanding.

Twitter Hashtags:

Share this holiday on social media using the hashtag #dissociativeidentitydisorderawarenessday and let your friends know what day it is today.



National Multiple Personality Day Yearwise

20225th MarchSaturdayUnited States
20235th MarchSundayUnited States
20245th MarchMondayUnited States
National Multiple Personality Day Yearwise


” Never let the fear of striking out get in your way.” – – Babe Ruth


Can DID be cured?

There is no cure for DID.  Most people will manage the disorder for the rest of their lives. But a combination of treatments can help reduce symptoms. 

Who had 24 multiple personality disorders?

Billy Milligan

How often do people with multiple personalities switch?

The average number is about 10. Often alters are stable over time, continuing to play specific roles in the person’s life for years.

How common is dissociative identity disorder?

Dissociative identity disorder (DID) is rare. It affects less than 1% of the population.

What are some signs of DID?

Only a doctor can diagnose DID, and it can be difficult to diagnose. Visit the National Alliance on Mental Illness (NAMI) for more information.

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