My DMD Hero

🧬 Duchenne Muscular Dystrophy (DMD) is an X-linked condition, meaning it’s passed down on the X chromosome.

👦 Why does this mostly affect boys?
Boys have one X chromosome (XY), so if their single X carries the dystrophin mutation, they develop DMD.

👧 What about girls?
Girls have two X chromosomes (XX), so if one carries the mutation, the other X often compensates. This means most girls are carriers rather than affected, though some may experience mild symptoms due to X-inactivation.

📢 Understanding DMD’s inheritance is key to awareness and early diagnosis. Share this to educate others!

🔗 Learn more about X-linked inheritance and DMD:
👉 https://www.mda.org/disease/duchenne-muscular-dystrophy
👉 https://www.ncbi.nlm.nih.gov/books/NBK1119/