General
lmp
What does lmp mean?
The start date of a patient's most recent menstrual period, used to assess pregnancy and gynecologic complaints.
"Her LMP was six weeks ago — check a pregnancy test."
Origin
Initialism of 'last menstrual period.'
Frequently asked questions
What does LMP mean in medicine?
LMP stands for 'last menstrual period' — the start date of a patient's most recent period.
Why is the LMP important?
It's used to estimate gestational age in pregnancy and to help evaluate gynecologic complaints.
Is LMP a formal medical term?
Yes, it's a standard clinical abbreviation used in charts and history-taking, not slang.
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