Vitamin deficiency causes easy bruising

Bruises form when small blood vessels leak beneath the skin after an impact, pressure or sometimes an event you did not notice. Nutrients support healthy skin, blood vessels and clotting, so a restricted diet or poor absorption can be relevant. A bruise alone cannot identify which nutrient, if any, is involved.

Other explanations include medicines that affect clotting, frequent minor knocks, sun-related skin thinning and medical conditions affecting blood cells or the liver. Note where bruises appear, whether they follow injury, and whether they are increasing. Do not stop a prescribed medicine without medical advice.

Arrange a clinical review if bruising is new, frequent or unexplained. A clinician may ask about eating patterns, alcohol, medicines, supplements, family history and other symptoms, then decide whether blood tests or nutrition assessment are appropriate.

Choose varied meals rather than starting high-dose supplements on your own. Keep a simple record of bruise location, approximate onset and associated bleeding. Protect skin from knocks, and use cool compresses briefly after an injury if swelling is present.

Seek urgent medical help for heavy bleeding that does not settle, blood in vomit or stool, a severe headache after an injury, faintness, confusion, or a rapidly enlarging painful bruise. Prompt review is also sensible when bruising comes with nosebleeds, bleeding gums, unusually heavy periods, fever, marked tiredness or tiny red-purple spots.

Ask whether your pattern of bruising suggests a nutrient issue or another cause, whether any medicine or supplement could contribute, and which tests would clarify the picture. Ask before taking iron or other high-dose supplements.