Coffee Before Pelvic Ultrasound: Is It Allowed?

Yes, drinking coffee (or any caffeinated beverage) before a pelvic ultrasound is generally permitted.

Why It's Fine

• Pelvic ultrasound (transabdominal or transvaginal) evaluates uterus, ovaries, bladder, adnexa.
• Caffeine does not affect pelvic organ visualization, uterine position, or ovarian morphology.
• No fasting or dietary restriction is standard for pelvic US.

What Does Matter

• Full bladder (transabdominal): Drink 32 oz water 1 hr before; do not void. Improves acoustic window.
• Empty bladder (transvaginal): Void before exam for comfort and probe access.
• Menstrual cycle timing: Some exams scheduled day 5–10 for endometrial assessment.
• Medications: No common meds interfere.

Exceptions

• If combined with abdominal ultrasound (liver, gallbladder, pancreas) → may require 6–8 hr fast.
• If sedation/anesthesia planned (rare for pelvic US) → fasting required.
• Specific research protocol may impose restrictions.

When in doubt, call the imaging center for their prep instructions.