A Bruise or Hematoma That Won't Go Away

How Long Should a Normal Bruise or Hematoma Take to Heal?

A bruise (medically a contusion) and a hematoma are both collections of blood that have leaked out of small vessels into the soft tissues after a knock or injury. The body breaks down that trapped blood step by step, and the breakdown is what you see as the bruise changes colour. A small, shallow bruise usually clears in one to two weeks; a larger or deeper hematoma — for example after a heavy fall, a sports injury, or on blood-thinning medicines — can take three to four weeks, occasionally longer. The key point is direction of travel: a healing bruise gets smaller, softer and paler over time.

If your bruise is moving through these stages and getting smaller, it is almost certainly healing normally and needs nothing more than time. The concern begins when a bruise stops changing, stays exactly the same for a month or more, or — most importantly — when the soft, squashy feel of a fresh hematoma gives way to a firm, defined lump. If you are trying to work out whether what you can feel is a harmless fatty lump or something that needs a scan, our guide on lipoma vs sarcoma walks through the differences in plain language.

When a Bruise That Won't Heal Needs to Be Checked

Most lingering bruises are simply slow to clear, especially in older adults, people on aspirin or warfarin, or after a big impact. But a short list of features should prompt you to see a doctor and ask for imaging rather than waiting any longer. Think of these as the situations where a scan answers the question quickly and puts your mind at rest:

None of these features means cancer — most stubborn bruises turn out to be a slowly-organising hematoma, a benign cyst, or scar tissue. They simply mean the easy reassurance of "it's just a bruise, give it time" no longer applies, and a quick scan is the sensible next step. The same logic applies to any new soft tissue lump: if you feel a hard, fixed lump under the skin that does not move, get it looked at.

Why a Sarcoma Can Sometimes Look Like a Bruise or Hematoma

Soft tissue sarcoma is a rare cancer that grows from the body's connective tissues — muscle, fat, blood vessels and nerves. It is uncommon (only a few thousand cases a year across all of India), and the great majority of lumps are not sarcoma. But it earns a mention here for one specific reason: a sarcoma is a soft, fleshy, blood-rich tumour, and it can bleed within itself. When that happens the surrounding tissue swells and discolours, and the whole thing can be mistaken for an ordinary deep bruise or a hematoma after a minor knock.

The trap is that the apparent "injury" and the tumour coexist. A patient bumps a thigh, notices a swelling, assumes it is a bruise — and the bruise never settles because there is a tumour underneath producing the bleeding. This is why the clue is not the bruise itself but its behaviour over time: a true hematoma resolves and shrinks; a sarcoma keeps the swelling present, and often slowly enlarges. A deep lump that is bigger than 5 cm, sits below the muscle layer, or grows over weeks deserves imaging regardless of any bruising story attached to it.

How Doctors Tell a True Hematoma From a Tumour

The good news is that distinguishing a harmless blood collection from a solid mass is straightforward with the right tests. The pathway is quick, safe, and almost always ends in reassurance.

A crucial safety rule applies throughout: a swelling assumed to be a hematoma should not simply be drained again and again. If a "hematoma" does not shrink on a follow-up scan, it must be imaged properly and, if solid, biopsied — because draining a sarcoma without diagnosing it can spread tumour cells and complicate later surgery. If you are reading this because a lump is already being planned for removal, our note on why a sarcoma treatment in Hyderabad always begins with a biopsy is worth a look first.

What You Should Do About a Bruise or Hematoma That Won't Heal

If you have read this far, you are probably weighing up whether to wait or to get the lump checked. Here is a simple, safe approach you can follow without panicking.

If the bruise is fading and shrinking

It is almost certainly healing normally. Keep an eye on it, avoid re-injuring the area, and let it run its course over a few weeks. No scan is needed unless something changes.

If it has stalled, hardened, or there was no injury

This is the point to stop waiting and get an ultrasound. It is a five-minute test, it does not hurt, and it almost always provides reassurance. If it shows a solid mass, an MRI follows — and in the rare case that confirms a tumour, an early diagnosis gives by far the best outcome.

If a lump is enlarging or already large and deep

Do not wait for it to be drained as a "hematoma." Ask directly for imaging of a soft tissue lump and a specialist opinion. The earlier a sarcoma is found, the more likely the surgery is limb-sparing and the higher the chance of cure.

Indicative Cost in Hyderabad

Costs are indicative. A personalised estimate is provided after your CION consultation. EMI options and cashless support through major TPAs, Aarogyasri, CGHS, ECHS & ESI are available for eligible patients.

Why Patients Choose CION to Check a Stubborn Bruise or Lump

Most bruises are harmless — but you deserve a quick, expert answer rather than weeks of worry. Here is why patients across Hyderabad trust CION to settle the question safely.

Stop Wondering — Get It Checked

A bruise that won't heal is usually nothing serious — but a quick scan turns weeks of worry into a clear answer. If yours has stalled, hardened, or grown, talk to our specialists today.