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What Is a 100-Day Baby Session, and Why Do Families Celebrate It?

A baby’s 100th day is one of the most meaningful early milestones in many Asian cultures, and it is a beautiful moment to preserve in portraits. If your family observes this tradition, or you are simply curious about it, here is what the celebration means, why 100 days is such a special age for photos, and how I help families honor it in the studio.

What Is a 100-Day Baby Celebration?

A 100-day baby celebration marks a baby thriving past the most vulnerable early months of life, and it carries wishes for a long, happy life of 100 years. It is a treasured tradition in several Asian cultures, most notably the Chinese Bai Ri Yan and the Korean Baek-il, celebrated with family, food, and blessings.

Baby in a traditional red outfit during a 100-day milestone session in Los Angeles

Why Is a Baby’s 100th Day So Meaningful?

The 100th day holds deep meaning because it historically marked a baby’s survival through the most fragile period of infancy. In earlier eras of high infant mortality, reaching this milestone was a moment of profound relief and gratitude. It also signaled that mother and baby had recovered and were ready to be introduced to the wider community.

This milestone carries layered significance:

  • Historical survival: In Chinese (Bai Ri Yan) and Korean (Baek-il) traditions, the first 100 days were a critical milestone due to high historical infant mortality rates.
  • Introduction to family and community: Passing this threshold meant the baby and mother had recovered from the delicate newborn phase, so the child could be formally introduced to relatives and friends.
  • A wish for long life: In Chinese tradition, the 100 days symbolize a wish for the child to live 100 years, a hope for a long and flourishing life.

What Are the Traditions and Symbols of a 100-Day Celebration?

The celebration is rich with symbols of luck, longevity, and protection. Families gather for a feast, share blessings, and give meaningful gifts. Colors, foods, and small ceremonies all carry wishes for the baby’s health, happiness, and prosperity throughout their life.

Some of the most cherished symbols and customs include:

  • Red eggs and pickled ginger: In Chinese tradition, these represent happiness, renewal, and fertility, and often feature at the celebration banquet.
  • Meaningful gifts: Relatives traditionally give red envelopes, gold jewelry, or a longevity lock necklace for protection and prosperity.
  • Rice cakes: In Korean Baek-il tradition, sweet white rice cakes are often shared with many guests as a wish for the child’s long and healthy life.
  • Blessings and rituals: Celebrations may include dressing the baby in red, hair-combing ceremonies for a smooth life path, and heartfelt words of blessing from loved ones.

Why Is 100 Days a Perfect Age for Baby Portraits?

100 days is a wonderful age for portraits because babies become noticeably more expressive right around this time. At about three months, they are more alert, beginning to flash their first social smiles, and able to lift their heads slightly during tummy time. That budding personality makes for joyful, engaging photos.

This sweet developmental window gives us so much to capture:

  • First social smiles that melt everyone’s hearts
  • More alert, curious expressions as they take in the world
  • Stronger head control during tummy time for adorable propped-up poses
  • Emerging personality that shines through in every frame

What Happens During a 100-Day Photo Session?

A 100-day session is a relaxed, baby-led studio experience focused on your little one’s changing expressions and your family together. I create clean, simple setups that keep all the attention on your baby, and I am always happy to weave in cultural elements that make the session personal and meaningful to your family.

Many families love to include traditional touches, and I welcome them warmly:

  • Traditional outfits that honor the celebration’s meaning
  • Creative themed setups that include treasured heirlooms
  • Family portraits so everyone shares in this milestone moment
  • Classic Milestone setups that Emily includes in all her other milestone sessions like Baby Mugshots

Whether you want a clean, timeless studio look, a fully traditional celebration, or a blend of both, we design the session around what matters most to your family.

How Do I Prepare My Baby for Their 100-Day Session?

Prepare by scheduling the session during your baby’s happiest time of day, which is often the morning or after a nap. Feed them beforehand, dress them in comfortable layers, and build in extra time so we can pause for feeding and soothing breaks. A calm, well-rested baby gives us the sweetest, most relaxed photos.

There is never any rush in my studio. We follow your baby’s cues, take all the breaks we need, and let the session unfold gently. My tips for keeping little ones happy during a session apply beautifully here too, from timing around naps to letting me help with the wrangling.

Baby in a traditional hanbok during a Korean first birthday Doljanchi session in Los Angeles

What About the First Birthday, the Dol?

The 100th day is just the beginning. In Korean culture, the next big milestone is the first birthday, called the Dol or Doljanchi, and it is one of the most cherished celebrations of all. These two milestones make a wonderful photo series to do together, and they are the two times a baby traditionally wears a hanbok, the beautiful traditional Korean outfit, so your gallery captures both special moments in that gorgeous attire.

The highlight of the Dol is a beloved ceremony called the Doljabi. Your baby sits in front of a spread of symbolic objects and chooses one, and that choice is said to playfully predict their future path. Each item carries its own meaning, and watching your little one crawl forward and grab one is such a sweet, memorable moment. It is a joy to photograph, and it makes the first birthday session feel truly one of a kind.

If you love the idea of celebrating both milestones, I would be honored to document your baby’s 100 days and their first birthday as a series, so you have this precious first year beautifully preserved from start to finish.

Ready to Celebrate Your Baby’s 100 Days?

This milestone comes and goes so quickly, and it is such a joy to preserve. I would be honored to help your family celebrate your baby’s 100 days with portraits you will treasure for a lifetime, honoring your traditions in whatever way feels right to you.

Reach out here and let’s plan your baby’s 100-day session.

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