A typical bruise heals completely in about two weeks. Most of that time is spent waiting for your body to clean up leaked blood beneath the skin, a process you can actually watch happen as the bruise shifts through a predictable sequence of colors. How quickly you move through those stages depends on your age, where the bruise is, and whether certain medications are in your system.
The Color Stages of Healing
When you bump into something hard enough to break small blood vessels under the skin, red blood cells leak into the surrounding tissue. Your body immediately starts breaking those cells down and recycling their parts, and each stage of that cleanup produces a different pigment, which is why a bruise changes color over time.
In the first day or two, the pooled blood gives the bruise a red, dark purple, or blue appearance. Over the next few days, immune cells in the tissue begin dismantling hemoglobin, the oxygen-carrying protein inside red blood cells. The first byproduct of that breakdown is a green pigment, which is why bruises often take on a greenish tinge around days three through five. That green pigment is then converted into a yellow one, giving the bruise its characteristic yellowish or brownish look in the second half of healing. The iron left over from the process gets stored as a brown pigment, which can linger slightly longer before the skin returns to normal.
Not every bruise follows this sequence in textbook fashion. A deep bruise may look blue or purple for longer before the color shifts become visible. A shallow one, especially on thin skin, can cycle through colors faster. And all of these stages can overlap, so you might see green at the edges while the center is still purple.
Why Some Bruises Heal Faster Than Others
Location matters more than most people realize. A bruise around your eye, where the skin is thin and the tissue underneath is loose, tends to look dramatic but can actually resolve relatively quickly because the area has good blood flow. A bruise on your lower leg, where circulation is slower and gravity works against drainage, often takes longer. Bruises over bone, like on your shin, also tend to be more intense because the impact compresses the tissue directly against a hard surface.
Age is the other major variable. Children and older adults bruise more easily than young, fit adults. Research published in Forensic Science International found that people over 65 developed the yellow stage of healing significantly more slowly than younger subjects. This means the visible bruise simply hangs around longer. The skin itself changes with age: it becomes thinner, loses some of its fatty cushioning, and the blood vessels underneath become more fragile. All of this adds up to bruises that form more easily and fade more slowly.
Several common medications also extend healing time. Blood thinners like warfarin and rivaroxaban interrupt the clotting process, which means more blood leaks out initially and the bruise has more cleanup to do. Aspirin and other anti-inflammatory painkillers have a similar, milder effect. Corticosteroids like prednisone interfere with multiple stages of tissue repair, from the initial inflammatory response to the rebuilding of connective tissue. If you take any of these regularly, bruises lasting three weeks or longer are not unusual.
How to Speed Up Recovery
The first few hours after an injury are when you have the most influence over how big the bruise becomes. Applying a cold pack (with a cloth barrier between the ice and your skin) for 10 to 20 minutes at a time during the first eight hours constricts blood vessels and limits how much blood leaks into the tissue. Less leaked blood means a smaller bruise and a shorter healing time. You can repeat this every hour or two.
If the bruise is on an arm or leg, gentle compression with an elastic bandage helps for the same reason, just make sure it’s not tight enough to cause numbness or tingling. Elevating the area above your heart when possible also reduces blood flow to the injury site.
After the first couple of days, the goal flips. Instead of limiting blood flow, you want to encourage it so your body can carry away the debris faster. Gentle warmth, like a warm washcloth applied for 10 to 15 minutes, increases circulation to the area and can help the bruise fade sooner. Light movement of the affected area supports this same process.
Bruises vs. Hematomas
A hematoma is essentially a severe bruise where a larger volume of blood collects in one area, sometimes forming a firm, swollen lump under the skin. While an ordinary bruise resolves in about two weeks, a hematoma can take four weeks or longer to fully heal. The lump may feel tender and firm for much of that time before the body gradually reabsorbs it.
In rare cases, a hematoma in muscle tissue can calcify, meaning the body deposits bone-like material in the damaged area instead of fully reabsorbing the blood. This is more common after significant trauma to large muscles, like the thigh. If a deep bruise remains hard and painful well beyond a month, that’s worth getting checked.
When Bruising Signals Something Else
Occasional bruises from bumps and falls are completely normal. The pattern that warrants attention is bruises that appear without any injury you can remember, especially if they’re larger than a centimeter, or bruises that show up frequently alongside other signs of unusual bleeding like nosebleeds that are hard to stop, heavy menstrual periods, or prolonged bleeding after minor cuts or dental work.
These patterns can point to platelet disorders, clotting factor deficiencies like von Willebrand disease (the most common inherited bleeding disorder), or in rare cases, blood cancers that affect how your body produces blood cells. A family history of easy bleeding or bruising raises the likelihood of an inherited condition, and this is especially relevant in children who may not yet have had an obvious bleeding challenge like surgery or a tooth extraction to reveal the problem.
A single bruise that simply seems to be taking longer than two weeks is rarely cause for concern on its own, particularly if it was a hard hit, if it’s on your lower leg, or if you take blood-thinning medication. The red flags are about patterns: frequent bruising without clear cause, bruises paired with other bleeding symptoms, or a bruise that keeps growing rather than fading.