What does "L1-L3" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"L1-L3" refers to the first three vertebrae in the lumbar region of the spine. In simpler terms, it's the lower part of the back. When a medical report mentions "L1-L3", it's talking about these specific parts of the lower back.
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