Children's skin

When a Hemangioma Breaks Down and Needs Attention

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A hemangioma that starts oozing, crusting, or bleeding looks like an emergency to most parents, and the pain it causes a baby makes that reaction understandable. Ulceration is well known to pediatric dermatologists as a complication of a rapidly growing hemangioma, with its own wound-care routine and, in more painful or slow-healing cases, its own treatment adjustments.

Last updated: July 2026

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What does an ulcerated hemangioma actually look like?

An ulcerated hemangioma is an infantile hemangioma — the raised, strawberry-red mark many parents already recognize — whose surface skin has broken down into an open wound. It can look like a shallow crater with a crusted or moist center, sometimes with a whitish-gray base, and it may ooze, weep, or bleed, especially after friction from clothing, a diaper, or a car seat strap. It shows up most often during the fastest-growing phase of a hemangioma, typically somewhere in the first several months of life, when the surface is being stretched and outpaced by how quickly the underlying blood vessels are proliferating. It's uncomfortable for a baby — visibly so, with fussiness around diaper changes or feeding if the hemangioma sits near the mouth — but it is a well-recognized complication with an established approach, not a sign that something has gone unusually wrong.

Why do hemangiomas break down and ulcerate in the first place?

Two forces drive ulceration, often together. The first is simple growth mechanics: a hemangioma's blood vessels can multiply faster than the thin skin stretched over them can keep up, so the surface becomes fragile and prone to breaking down under even ordinary handling. The second is location — hemangiomas sitting in high-friction, high-moisture spots break down more easily than ones on flatter, drier skin. The lip and mouth, the neck folds, the armpit, and the diaper area are the classic sites, precisely because they're rubbed by clothing or a diaper, kept damp, or both. A larger, more raised (rather than flat) hemangioma is generally more prone to ulcerating than a smaller, superficial one, simply because there's more rapidly growing tissue and more surface under mechanical stress. Segmental hemangiomas — the flatter, more plaque-like pattern that spreads across a wider area rather than forming a single raised bump — carry a higher ulceration risk than the more compact, rounded type, which is one reason a hemangioma's shape and pattern matter to the clinician tracking it, not just its size.

How is the wound cared for day to day?

Day-to-day care follows ordinary open-wound principles, adapted for a baby's skin. A thick layer of a plain barrier ointment such as petroleum jelly, reapplied with each diaper or clothing change, keeps the wound moist and cushions it from friction — moist wound healing generally closes faster and less painfully than letting a wound dry out and crack. A non-stick dressing over the ointment, changed at least daily or whenever it's soiled, protects the area further, particularly in the diaper region where stool and urine can irritate an open sore. Harsh soaps, alcohol-based wipes, and anything astringent or drying are best avoided on the wound itself, since they slow healing and add pain without any benefit. If the hemangioma sits somewhere sun-exposed, like the face, keeping the healing area under shade or covered by clothing rather than relying on sunscreen follows the same standard advice used for any infant skin under six months old — healing skin is more sun-sensitive than intact skin, not less.

Does ulceration change the treatment plan?

Often, yes. Ulceration is itself one of the more common reasons a clinician moves from simply monitoring a hemangioma to starting or adjusting active treatment, because pain and slow healing are real problems worth addressing directly rather than waiting out. An oral beta-blocker, propranolol for hemangioma, is the medication most often reached for once a hemangioma is causing trouble like this — it acts on the abnormal blood vessels themselves, and clinicians use it specifically because it tends to calm an ulcerated area down and ease pain faster than wound care alone would manage, on top of its usual effect of slowing the hemangioma's growth. The specific plan — starting the medication, adjusting an existing course, or adding a topical or laser option for the wound itself — is a decision for the treating clinician based on the hemangioma's size, location, and how it's healing, not something to manage from general guidance alone. an ulcer prompting treatment doesn't mean the hemangioma itself has become more dangerous — it means the visible discomfort finally has a clear reason to act on.

Could this be something else — not a hemangioma at all?

A few other common infant skin findings get mistaken for a hemangioma problem and are worth telling apart. A chronic, dry, intensely itchy patch that flares and calms down over months, rather than a single sore on a known hemangioma, is more consistent with eczema, which is managed with routine moisturizing and topical anti-inflammatory treatment rather than wound-care techniques 1 — eczema doesn't ulcerate into an open, bleeding sore the way a rapidly growing hemangioma can. A scaly, circular, spreading patch is a different problem again — more likely ringworm, a fungal skin infection that's treated with a topical antifungal rather than barrier ointment or medical hemangioma treatment 2. And a mole a baby is born with — a congenital nevus — is a pigmented growth that stays present for years and doesn't ulcerate or bleed in the same acute way a hemangioma does. If a sore doesn't sit on a hemangioma a family already recognized as one, it's worth a clinician confirming the diagnosis before assuming the ulceration playbook applies.

When does this need urgent medical attention?

Most ulcerated hemangiomas heal over one to a few weeks with steady wound care, sometimes faster once medical treatment is started. But a few signs mean the situation has moved past routine home care and needs same-day medical attention: bleeding that doesn't stop after several minutes of firm, direct pressure; spreading redness, warmth, swelling, or pus around the wound, which suggest a secondary bacterial infection; or a baby who develops a fever, since fever in a very young infant is always evaluated urgently regardless of the cause. A baby who stops feeding well, seems unusually lethargic, or is in pain that isn't controlled by the usual comfort measures also warrants a same-day call to the pediatrician rather than waiting for a scheduled follow-up. None of these signs are common, and most ulcerated hemangiomas heal at home with ordinary wound care — the point of naming them is simply to make the rare exception easy to recognize quickly.

Common questions

No. Infantile hemangiomas are benign, and ulceration is a mechanical and vascular complication of rapid growth in a fragile spot, not a sign of malignancy. A hemangioma that looks unusual for its type — irregular, hard, or fixed to deeper tissue — is a separate reason for evaluation, but ulceration alone doesn't suggest cancer.

Many heal within one to a few weeks with consistent wound care, though healing time depends on the size and location of the ulcer and whether medical treatment is also started. A wound that isn't improving at all after a couple of weeks of good wound care is worth reporting back to the treating clinician.

Usually yes, though feeding can be uncomfortable for the baby in the short term if the hemangioma sits on the lip. Positioning changes, a different bottle nipple, or timing feeds around pain-relief measures the pediatrician recommends can help; a lactation consultant or the treating clinician can problem-solve specifics for a lip hemangioma.

Some do leave a small scar or a slightly different skin texture where the ulcer was, though many heal with minimal long-term marking, especially with prompt wound care. The hemangioma itself will still go through its own long fade of a hemangioma afterward, following the same overall course as one that never ulcerated.

Covered, generally. A moist wound under ointment and a non-stick dressing tends to heal faster and with less pain than one left open and allowed to dry and crack, particularly in a diaper area or a body fold where friction is unavoidable.

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When an ulcerated hemangioma needs same-day care

  • —Bleeding that does not stop after several minutes of firm, direct pressure
  • —Spreading redness, warmth, swelling, or pus around the wound
  • —Fever in a young infant, which always warrants urgent evaluation regardless of the suspected cause
  • —A baby who stops feeding well, seems unusually lethargic, or has pain that isn't controlled by usual comfort measures

Uncontrolled bleeding, a fever in a young infant, or a baby who seems seriously unwell should be evaluated the same day — call the treating clinician immediately or go to an emergency room if one isn't reachable.

This article describes general wound-care patterns for an ulcerated hemangioma and is not a substitute for the treating clinician's guidance. Specific wound care and any medical treatment should be directed by the pediatrician or pediatric dermatologist managing the hemangioma.

References

  1. 1.Schoch JJ, Anderson KR, Jones AE, Tollefson MM (2025). Atopic Dermatitis: Update on Skin-Directed Management: Clinical Report. Pediatrics. linkThat pediatric atopic dermatitis is managed with routine moisturizing and topical anti-inflammatory treatment for chronic, itchy skin — used as a contrast to explain that eczema doesn't ulcerate into an acute open wound the way a rapidly growing hemangioma can, not as a claim about hemangioma treatment.
  2. 2.Centers for Disease Control and Prevention (2024). Ringworm Basics. CDC. linkThat ringworm (tinea) is a common fungal skin infection presenting as a circular, scaly, spreading rash — used to name a real look-alike condition treated with a topical antifungal, as a contrast to an ulcerated hemangioma, not as a claim about hemangiomas themselves.

2 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — citations link their sources. Editorial policy

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