Most bruises heal completely within two weeks. A mild bump might fade in under a week, while a deeper or larger bruise on the lower body can linger for three to four weeks. The timeline depends on where the bruise is, how hard the impact was, your age, and whether you take certain medications.
The Color Stages of Healing
A bruise changes color as your body breaks down the trapped blood beneath the skin. It starts pinkish-red, then shifts to dark blue or purple within the first day or two. Over the next several days, it fades through violet and green before turning dark yellow, then pale yellow, and finally disappearing altogether. These aren’t random changes. Each color reflects a different stage of your immune cells digesting the blood pigment hemoglobin.
When red blood cells rupture in tissue, they release hemoglobin, which your cleanup cells gradually convert into a green pigment and then a yellow one. The iron left over gets stored as a brownish compound, which is why some bruises look muddy brown before they fade. This entire chemical cascade typically runs its course in about 14 days for a standard bruise on the arm or torso.
Why Location Matters
Bruises on your legs take noticeably longer to heal than bruises on your face or arms. The reason is partly gravity: blood pools more easily in the lower body and has a harder time being reabsorbed. A leg bruise can also spread downward over time, migrating toward the ankle or foot as trapped blood follows gravity through the tissue. This migration can make it look like the bruise is getting worse even though it’s actually just dispersing. A bruise on your shin or calf might take three weeks or more to fully resolve, while a similar-sized bruise on your cheek could be gone in a week.
Factors That Slow Healing
Several things can push a bruise well past the two-week average:
- Age. As you get older, your skin thins and loses the protective fatty layer that cushions blood vessels. Sun exposure and genetics accelerate this process. The result is that older adults bruise more easily from minor bumps and those bruises tend to stick around longer.
- Blood thinners. Medications like warfarin and other anticoagulants reduce your blood’s ability to clot, which means more blood escapes into tissue after an impact and takes longer to clear. Taking a non-prescription painkiller like aspirin or ibuprofen on top of a blood thinner compounds the effect.
- Anti-inflammatory drugs. NSAIDs like ibuprofen and aspirin can increase bruising on their own, even without a blood thinner, because they interfere with platelet function.
- Corticosteroids. Long-term use of steroids like prednisone weakens blood vessel walls in the skin, making bruises appear more easily and heal more slowly.
- Chemotherapy drugs. Cancer treatments can reduce platelet counts, which affects clotting and prolongs bruise healing.
Bruises vs. Hematomas
A standard bruise is a flat discoloration where blood has leaked into the tissue just beneath the skin. A hematoma is a step up in severity: blood pools in a larger pocket and forms a firm, swollen lump. You can often feel the difference. A hematoma feels raised and hard, while a regular bruise lies flat.
Hematomas take significantly longer to resolve than surface bruises. A small hematoma might clear in two to three weeks, but larger ones, particularly deep in muscle tissue, can persist for a month or more. The lump gradually softens and shrinks as your body reabsorbs the pooled blood, but in some cases the area stays firm or tender long after the discoloration fades.
When a Bruise Signals Something Else
A bruise that hasn’t healed within two weeks is worth mentioning to a doctor. The same goes for bruises that appear suddenly without any injury you can recall, a pattern called purpura. Unexplained bruising that happens more often than it used to can point to an underlying issue, including clotting or bleeding disorders, certain vitamin deficiencies, liver disease, infections, or some cancers. None of these are the likely explanation for a single stubborn bruise after a known injury, but a pattern of easy or spontaneous bruising is a different story.
Speeding Up the Process
You can shorten the lifespan of a bruise, though the effect is modest. Ice applied in the first 24 to 48 hours constricts blood vessels and limits how much blood leaks into the tissue. After that initial window, warmth helps increase circulation and speed reabsorption.
Topical treatments have some evidence behind them. A 2021 review found that arnica, a plant-based gel or cream, significantly helped with bruising in 18 out of 25 studies examined. Results were inconsistent across all studies, but the overall trend was positive. Vitamin K cream has also shown promise: applying a 1% formulation twice daily helped resolve bruising in at least one clinical study. Neither treatment will make a bruise vanish overnight, but both may shave a few days off the timeline.
Elevating the bruised area when you can, especially for leg bruises, helps counteract gravity’s tendency to spread the pooled blood downward. The combination of early ice, elevation, and a topical like arnica is the most practical approach for a bruise you want gone faster.