Most bruises heal completely within two to three weeks. A minor bump might fade in as little as 10 days, while a deeper or larger bruise can linger for four weeks or more depending on where it is on your body and your overall health. The color changes you see during that time are your body actively breaking down and recycling trapped blood beneath the skin.
What Happens Inside a Bruise
When you bump into something hard enough to break tiny blood vessels under the skin, blood leaks into the surrounding tissue. Your body can’t just mop that up instantly. It has to break down the hemoglobin in those trapped red blood cells through a series of chemical steps, and each step produces a different pigment. That’s why a bruise changes color as it heals.
The typical color progression looks like this: a bruise starts as a pinkish or red mark, shifts to dark blue or purple within the first day or two, then gradually fades through violet and green before turning dark yellow and finally pale yellow as it disappears. You won’t always see every color distinctly, especially with smaller bruises, but the general shift from dark to warm tones is a reliable sign that healing is on track.
Typical Healing Timeline
For a healthy adult with a standard bruise on the arm or torso, expect about two weeks from impact to full resolution. Here’s roughly how that breaks down:
- Days 1 to 2: The bruise appears red or pinkish, then deepens to blue or purple as blood pools under the skin.
- Days 3 to 7: The bruise looks its darkest. You may notice it spreading slightly as the trapped blood settles with gravity. It can be tender to the touch.
- Days 7 to 14: Green and yellow tones appear as your body breaks down the blood pigments. Tenderness fades.
- Days 14 to 21: The bruise turns pale yellow or light brown and gradually disappears. Deeper bruises may take the full three weeks or slightly longer.
Bruises on your legs, especially the shins and calves, tend to heal more slowly than bruises on your arms or face. Blood has to fight gravity to return from the lower extremities, so the leaked blood takes longer to clear. A shin bruise that hangs around for three to four weeks isn’t unusual.
Why Some Bruises Last Longer
Several factors determine whether your bruise fades quickly or sticks around:
Age. As you get older, your skin thins and loses some of the fatty layer that cushions blood vessels. The vessels themselves also become more fragile. This means older adults bruise more easily and those bruises often take longer to clear because the initial leak is larger.
Location and severity. A light bump on the forearm heals faster than a deep muscle bruise on the thigh. Deeper bruises involve more trapped blood, which simply takes more time for your body to process. Bruises near joints or on the lower legs also tend to resolve more slowly.
Medications. Blood thinners like warfarin, aspirin, and similar drugs slow down clotting. When you’re on these medications, the tiny broken blood vessels under your skin take longer to stop leaking than they normally would. The result is bruises that form more easily, spread wider, and last longer. Even over-the-counter anti-inflammatory drugs like ibuprofen can have a mild blood-thinning effect that makes bruises worse.
Nutritional factors. Vitamin K plays a key role in blood clotting. A deficiency can lead to easier bruising, paler skin, and slower healing. Vitamin C is important for maintaining the strength of blood vessel walls, so low levels can make capillaries more prone to breaking in the first place. Most people get enough of both vitamins through a normal diet, but restrictive eating patterns or certain medical conditions can create shortfalls.
How to Help a Bruise Heal Faster
The most effective thing you can do happens in the first 24 to 48 hours. Applying ice wrapped in a cloth for 15 to 20 minutes at a time constricts the broken blood vessels and limits how much blood leaks into the tissue. Less leaked blood means a smaller bruise that clears faster. Elevating the bruised area above heart level, when practical, helps for the same reason.
The traditional RICE approach (rest, ice, compression, elevation) has been recommended for soft tissue injuries for decades, though the evidence behind it is mostly observational rather than from controlled trials. The doctor who originally described the method later acknowledged it wasn’t based on rigorous clinical data. That said, ice and elevation in the early hours do help control swelling and limit the size of the bruise, which is the main thing you can influence.
After the first couple of days, gentle warmth (a warm compress or heating pad on low) can help increase blood flow to the area and speed up your body’s cleanup process. Avoid massaging the bruise aggressively in the first day or two, as that can actually worsen the bleeding under the skin.
When a Bruise Needs Medical Attention
A bruise that hasn’t healed within two weeks is worth mentioning to a healthcare provider. Most of the time it’s just a deeper bruise taking its course, but slow healing can occasionally point to something else going on.
Pay closer attention if you notice frequent or recurrent bruising that you can’t explain, especially if the bruises appear in places you haven’t injured. Other signs that warrant a conversation with your doctor include severe pain that seems disproportionate to the injury, muscle weakness or numbness near the bruise, or color changes in the skin beyond the bruise that suggest poor circulation.
A hematoma, which is a larger, more organized collection of blood under the skin, can sometimes develop from a significant impact. Hematomas tend to feel firmer than a regular bruise and can press on surrounding tissues, causing more pain and swelling. The bigger a hematoma is, the more likely it is to cause noticeable symptoms and the longer it takes to resolve.
Seek emergency care if a bruise or head injury is accompanied by trouble breathing, chest pain, a sudden severe headache, one-sided weakness, vision changes, difficulty speaking, or loss of consciousness. These symptoms suggest something more serious than a surface bruise.