Blood pressure report · US guideline
My Blood Pressure is 111/51 - good or bad?
Each scale rates one number on its own; the higher category counts. Blue = low (systolic under 90 or diastolic under 60) — a common label, not an AHA/ACC category.
Low, but often harmless if you feel well
Talk to your doctor if you have symptoms such as dizziness when you stand up, blurred vision or fainting, or if low readings are new for you or started with a new medicine. If you feel faint, confused, short of breath, or cold and clammy, call 911 (US) or your local emergency number.
What this reading tells you
Your reading sits on the low side. That is common in lean, active people and usually protective — your heart works against little resistance. It only becomes a topic if you notice light-headedness when standing, blurred vision or fainting — then talk to your doctor.
Know your numbers
The average pressure that keeps your organs supplied — diastolic plus one third of the gap. Typical — within the usual range of 70–100.
Usual — within the range of 30–60; the arteries cushion each heartbeat as expected.
Questions to ask your doctor
- Could any of my medicines be lowering my blood pressure?
- Should we check my blood pressure lying down and standing up?
- Do my symptoms (if any) need tests such as an ECG or blood count?
Your 7-day home check
One reading can mislead. Measure twice each morning (before medication and coffee) and evening for a week, skip day 1, and average the rest. Print this log or copy it. How to measure: How to Check Your Blood Pressure at Home.
| Day | AM 1 | AM 2 | PM 1 | PM 2 |
|---|---|---|---|---|
| 1* | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| 5 | ||||
| 6 | ||||
| 7 |
AM = morning, PM = evening, two readings one minute apart. *Day 1 is practice — leave it out of the average.
Print this page · Bring the log to your doctor if your readings stay low or you have symptoms.
Look up another reading
Readings close to 111/51
Sources: 2025 AHA/ACC high blood pressure guideline (Hypertension 2025;82:e212–e316) · MedlinePlus: Low blood pressure
MyBodyResearch explains readings in general terms; it does not diagnose. High blood pressure is confirmed with repeated measurements, and treatment decisions belong with your doctor.