Occasional black and blue marks from bruises are a normal occurrence. Bruises can be uncomfortable, but they usually heal on their own unless theyre associated with a medical condition. See your healthcare provider if a bruise doesnt improve or resolve within three weeks.

How do you treat a black bruise?

The following treatments can be done at home:Ice therapy. Apply ice immediately after the injury to reduce blood flow around the area. Heat. You can apply heat to boost circulation and increase blood flow. Compression. Wrap the bruised area in an elastic bandage. Elevation. Arnica. Vitamin K cream. Aloe vera. Vitamin C.More items

Do black and blue bruises go away?

Once youre bruised, youll have that telltale black-and-blue mark on your skin for up to 2 weeks. The bruise should change colors as it heals. You may also have some pain and swelling.

What causes black and blues for no reason?

Most bruises form when small blood vessels (capillaries) near the skins surface are broken by the impact of a blow or injury — often on the arms or legs. When this happens, blood leaks out of the vessels and initially appears as a black-and-blue mark. Eventually your body reabsorbs the blood, and the mark disappears.