Celebrating World Down Syndrome Day (WDSD)

World Down Syndrome Day (WDSD) occurs on March 21st each year and is an officially observed day founded by the United Nations. World Down Syndrome Day proudly aims to bring awareness to Down syndrome and express solidarity with the children and adults who experience it.

Celebrating World Down Syndrome Day

The first observance of World Down Syndrome Day was March 21st, 2006, by Down Syndrome International (DSi). In 2011, it was declared an international day by the United Nations General Assembly, encouraging governments worldwide to participate. Today, countries across the globe join together to observe this special day. You may be wondering "What is World Down Syndrome Day?" ItWorld Syndrome Day aims to bring awareness to those with Down syndrome and their struggles, triumphs, and unique experiences. It also emphasizes human rights, dignity, and respect for individuals with disabilities. 

The annual theme and global conference

Each year, there is a different theme for World Down Syndrome Day. This theme is responsible for driving relevant events and conversations, including the global conference held in New York.

World Down Syndrome Day theme and focus

World Down Syndrome Day Conference and international meetings

The World Down Syndrome Day Conference is a meeting held at the United Nations Headquarters in New York. Hosted by Down Syndrome International, the conference focuses on human rights issues for people with Down syndrome and other intellectual disabilities. Participation from individuals with Down syndrome and their families is encouraged. 

What is Down syndrome?

Down syndrome is a human condition caused by an extra chromosome that develops during pregnancy. The UN states it occurs in around 3,000 to 5,000 births per year. Those born with this Down syndrome often have facial and bodily differences, such as wide-set upturned eyes and a flat nose. Babies that develop an extra chromosome receive the extra chromosome on chromosome 21, which causes Down syndrome. It can also be referred to as trisomy 21. 

How to celebrate and show support

Wear colorful socks to help raise awareness

The #LotsOfSocks campaign was developed to raise public awareness about Down syndrome. Each year on World Down Syndrome Day, the Lots Of Socks campaign encourages individuals to choose a bright and colorful pair of socks to wear in a visible fashion at work or school. If someone asks about your socks, DSi suggests saying, “I’m wearing them to raise awareness of Down syndrome.”

Support an organization 

A few organizations provide support, financial aid, treatment options, and advocacy for adults and children with Down syndrome. For World Down Syndrome Day, consider the following ways to participate and show support: 

• Donating to an organization
• Offering volunteer hours
• Signing up for email updates on current research

Participate in an event for World Down Syndrome Day

Each year, there are different events related to World Down Syndrome Day. One such event is the World Down Syndrome Conference, which occurs in New York at the United Nations headquarters. In 2026, the conference will include speakers with Down syndrome and disabilities, advocates, UN officials, and NGO representatives. You can also find other events as well as contact information on the WDSD event page.

Getting involved with World Down Syndrome Day events

Visual displays around the world for WDSD

If you don’t hear about World Down Syndrome Day on March 21st, chances are you’ll see some visual displays such as blue and yellow lights, ribbons, and socks.

Why blue and yellow represent World Down Syndrome Day

Blue and yellow are the official colors for World Down Syndrome Day. These colors were chosen for their unique ability to symbolize joy, optimism, and hope. 

Blue and yellow lights and global landmarks lit up

In honor of World Down Syndrome Day, iconic landmarks in the United States and across the world are lit up in a dazzling display of blue and yellow. Some of these landmarks include: 

• The Empire State Building in New York
• The Eiffel Tower in Paris
• The Bell Tower in Australia
• The Taipei 101 in Taiwan

Finding support and resources

There are a few options for adults diagnosed with Down syndrome who may not know how to reach out for support. If a doctor diagnosed you, ask them if they have resources for your symptoms. Depending on your needs, doctors might offer referrals to further treatment options like medication, therapy, or physical therapy. 

Organizations with online resources for managing symptoms and navigating life

Adults may find additional resources for Down syndrome at the following sites: 

• The Arc
• Developmental Disabilities Resources Center
• American Association on Intellectual and Developmental Disabilities 
• National Disability Rights Network (NDRN) Global Network
• Baddour Center
• A Voice Of Reason 
• Best Buddies (Jobs for people with disabilities)  

Counseling options to support mental health

People experiencing Down syndrome and their families might also benefit from counseling. NDSS states that the most common mental health conditions among those with Down syndrome include:

• Anxiety
• Obsessive compulsive disorder (OCD)
• Depression
• Tic disorder

These conditions may be managed with the support of a licensed therapist alongside self-care and help from support systems. 

Additionally, counseling to support navigating Down syndrome can be attended online and from home, which reduces barriers such as cost and can allow further availability for many. One recent study on internet-based treatment found that 71% of participants found it preferable to and more effective than in-person counseling.