Things that cause high cholesterol

Your liver makes cholesterol, and your body also receives it from food. Levels can rise when the body clears cholesterol less efficiently or when the balance of fats in the diet changes. Family history can matter even when someone eats thoughtfully and stays active. Diabetes, kidney disease, an underactive thyroid, and some liver conditions may also affect results. Certain medicines can alter cholesterol, so provide a complete medication and supplement list.

High cholesterol often causes no noticeable sensation. A blood test is needed to identify the pattern, including harmful and protective lipoproteins and triglycerides. The result is considered alongside age, blood pressure, smoking, diabetes, and previous vascular problems; one number does not describe the whole risk.

Arrange a clinician review of your result and family history. A [Cholesterol Test](/treatments/diagnostics-and-screening/cholesterol-test/) can help establish the pattern, while [Nutrition Counselling](/treatments/lifestyle-and-wellness/nutrition-counselling/) can turn general advice into meals that fit your routine. Focus on vegetables, beans, whole grains, nuts, and unsaturated fats; limit foods high in saturated fat and avoid tobacco. Regular movement, weight management where appropriate, sleep, and control of related conditions all support cardiovascular health.

Do not stop a prescribed medicine without advice. If lifestyle measures are not enough, a clinician may discuss [Statin Therapy](/treatments/medical-management/statin-therapy/) and explain monitoring, benefits, and possible unwanted effects.

High cholesterol itself is usually silent, but seek emergency help for chest pressure, severe breathlessness, sudden weakness or numbness on one side, trouble speaking, or sudden vision loss. These may signal problems such as [Angina](/conditions/angina/) or [Stroke](/conditions/stroke/). Arrange prompt medical review for new leg pain when walking, a foot wound that is slow to heal, or cool or pale skin, which can occur with [Peripheral Arterial Disease](/conditions/peripheral-arterial-disease/).

Ask which cholesterol pattern needs attention, whether another health condition or medicine could be contributing, when to repeat testing, and what target is appropriate for your personal risk. Ask how food changes, activity, and treatment will be reviewed together.