What usually happens next
Most guidelines lean towards treatment at this level, depending on your overall risk; diet and weight changes come first or alongside.
When an LDL cholesterol can read wrong
Many labs calculate LDL rather than measure it, and the older Friedewald formula reads too low when triglycerides are high (over about 150, and it isn't used over 400). A recent illness, big weight loss or pregnancy also moves it. ApoB isn't fooled by triglycerides.
Read it with
Nearby results

Questions
Is an LDL cholesterol of 177 mg/dL normal?
An LDL cholesterol of 177 mg/dL is in the 160 to 189 mg/dL range called high. The usual range is under 100 mg/dL is called optimal.
What is 177 mg/dL in mmol/L?
4.58 mmol/L. Labs in different countries print LDL cholesterol in different units; the meaning is the same.
Is an LDL of 177 mg/dL high?
Under 100 mg/dL is optimal, 100 to 129 near optimal, 130 to 159 borderline high, 160 to 189 high and 190 or more very high. What it means for you depends on your overall heart risk.
Do I need a statin with an LDL of 177 mg/dL?
At 190 mg/dL or more the ACC/AHA guideline recommends one regardless of other risk. Below that, it depends on your 10-year risk, diabetes and other factors, a decision made with your doctor.
Worked out by LifeFrom from the NCEP categories and the 2018 AHA/ACC guideline, and not yet reviewed by a clinician. For your own understanding: only a lab test, read by your clinician, diagnoses anything.