10/20/2025
What is triploidy?
Triploidy is a rare chromosomal condition where a baby has three copies of every chromosome instead of two — totaling 69 instead of 46. This extra set of chromosomes affects every system in the body and is often associated with other conditions such as growth restriction, heart defects, and differences in the brain, the kidneys, and in arms and legs. Mosaic triploidy is when a baby has three copies in more than one chromosome, but not all.
A triploidy diagnosis is different from trisomy, in which only one chromosome exists in three pairs.
The two children pictured on our graphic have a mosaic triploidy where not all of their chromosomes have an extra set, but more than one are triploid. Many times testing may indicate triploidy, but not immediately whether the pre-born baby has full triploidy or mosaic.
A full triploidy diagnosis is considered life-limiting, yet every baby’s life — no matter how brief — carries immense worth and value. There is hope for mama bears walking this path.
At Mama Bear Care, we walk beside these mama bears — those who receive serious diagnoses like triploidy, Trisomy 13, Trisomy 18, and other life-limiting conditions. 🐻
Will you join us in wrapping them in love and support?
💝 Become a donor today and help us care for mama bears carrying immense love for their babies through difficult diagnoses.
🔗 www.mamabearcare.org
Photo Credit to Wikipedia User: Poppyellen - Own work, CC BY-SA 3.0, https:// commons. wikimedia. org/ w/index. php? curid=34033664