What easy bruises on the body can mean

A bruise forms when small blood vessels leak beneath the skin. Bruises may be easier to notice as skin becomes thinner with age or long-term sun exposure; see [Sun-Damaged Skin](/conditions/photoaging/). Medicines that affect clotting, nutritional problems, platelet disorders, and other medical conditions can also contribute. The appearance and timing matter: note whether bruises follow minor knocks, occur in unusual places, or arrive with other bleeding symptoms.

Photograph new bruises in good light and keep a brief record of when they appeared, where they are, and any remembered injury. Review prescription medicines, supplements, and non-prescription pain medicines with a clinician rather than stopping a prescribed treatment yourself. Protect the area from further knocks; a wrapped cool pack can be used briefly soon after an injury. Arrange an appointment if bruising is a persistent change or is accompanied by nosebleeds, bleeding gums, unusually heavy periods, or marked tiredness.

Seek prompt medical care for rapidly increasing bruising, large unexplained bruises, bleeding that does not stop with firm pressure, blood in urine or stool, severe headache after an injury, dizziness, or weakness. Urgent help is needed for confusion, fainting, or breathing difficulty. A clinician may examine your skin and review medicines before deciding whether blood tests are needed.

Ask whether the pattern could relate to a medicine, sun-related skin thinning, nutrition, or a blood-clotting issue. Bring your bruise record and a complete list of medicines and supplements, and ask which warning signs should prompt faster review.