Eh, I think your doctor means small red blood cells (microcytic), kan? That usually points to iron deficiency or thalassemia trait, kena confirm dengan blood test lagi untuk sure. A few of us mums in my group have thalassemia carriers in the family, and honestly it depends on severity lah, but definitely discuss dengan your doc about what it means for you specifically, especially if you're planning pregnancy or anything. Don't worry yet, banyak orang have this and manage well, just need proper follow-up tests and maybe supplements if needed.