What Does BSA Mean in Medical Terms?

BSA stands for body surface area. Measured surface area of the body, used in calculations.

Where you will see BSA

You will most often see BSA in medical charts and clinical notes.

Example

A chart note might use “BSA” as shorthand for body surface area when documenting a patient's care.

Related abbreviations

• A&O x4 — alert and oriented times four (person place time situation)
• a.m. — ante meridiem (morning)
• A/P — assessment and plan
• AC — anterior chamber (eye)
• ACG — angle-closure glaucoma
• ACIOL — anterior chamber intraocular lens
• ACR — American College of Radiology (appropriateness context)
• acuity — patient acuity (severity level)

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.