Cauliflower EarWhat causes it, why urgent treatment matters and options for established deformity

Medically reviewed: Last reviewed by Mr Reza Nassab, FRCS Plast —

Cauliflower ear is a thickened, lumpy outer ear that develops after an injury causes blood to collect between the ear cartilage and its lining. If that collection (an auricular haematoma) is not drained promptly, the cartilage can be damaged and scar tissue forms, leaving a permanent deformity. A fresh swelling needs same-day medical assessment; an established cauliflower ear can sometimes be improved with surgery.

How cauliflower ear develops

The cartilage of the outer ear has no blood supply of its own. It relies on a thin lining called the perichondrium, which carries nutrients from the overlying skin. A blow or shearing force, such as a punch, a grapple or repeated rubbing in a scrum, can separate the lining from the cartilage and allow blood to pool between them. Deprived of its nourishment, the cartilage can die, and the body lays down fibrous tissue and new, irregular cartilage. The result is the firm, folded, lumpy shape known as cauliflower ear.

Who is at risk?

  • Contact and combat sports: wrestling, boxing, mixed martial arts, judo, Brazilian jiu-jitsu and rugby are the most common causes.
  • Repeated minor injury: several small knocks can cause recurrent collections even without one major blow.
  • Blood-thinning medicines: these can make bleeding into the ear more likely after minor trauma.
  • Other injuries: falls, assaults and accidents can cause an auricular haematoma.

Well-fitting protective headgear reduces the risk in contact sports.

A fresh swelling: act quickly

A soft, tender, swollen area on the front of the ear after an injury is likely to be a haematoma. It should be assessed the same day, ideally within hours, at a minor injuries unit, A&E or by your GP. Treatment usually involves draining the blood through a needle or small incision and applying a pressure dressing or bolster so the lining stays against the cartilage. The collection can refill, so follow-up over the next few days matters. Seek urgent help for increasing pain, redness, heat or fever, which may indicate infection of the cartilage.

Established cauliflower ear

Once the swelling has hardened, which can happen within weeks, drainage no longer works. The ear may look thickened and distorted, lose its normal folds, and sometimes partly block the ear canal. It is not usually harmful, but some people are self-conscious about its appearance or find it uncomfortable when sleeping or wearing headphones. Recurrent infection or a blocked ear canal should be reviewed by a GP.

Surgical options

Surgery for an established cauliflower ear aims to improve the contour rather than restore a completely normal ear. Through an incision, usually hidden at the back or within the folds of the ear, excess scar tissue and thickened cartilage are carefully sculpted away, and the skin is redraped and held with a bolster dressing while it heals. Some cases also need reshaping of the ear’s framework using techniques similar to otoplasty. Severely damaged ears may need complex reconstruction. Mr Nassab will assess the ear and explain what is realistic, including whether surgery is advisable.

Recovery and risks of correction

A head bandage or bolster is usually worn for around a week, and the ear may be swollen and bruised for several weeks. Contact sports should be avoided until healing is complete, and protective headgear is advised afterwards, as a further injury can undo the improvement. Risks include recurrence of a haematoma, infection of the cartilage, skin healing problems, residual irregularity, asymmetry with the other ear and altered sensation. Surgery for cauliflower ear is quoted at consultation, and the £150 consultation fee is separate. Cosmetic ear surgery is for adults aged 18 and over.

Frequently Asked Questions

Is cauliflower ear permanent?

Once it has hardened, it does not resolve on its own. Early drainage of a fresh haematoma gives the best chance of preventing it.

How soon should a swollen ear be drained?

As soon as possible, ideally the same day. Delays allow the blood to clot and the cartilage to be damaged.

Is it safe to drain it at home?

No. Self-drainage risks serious infection of the cartilage and recurrence. It should be done by a clinician with appropriate dressing afterwards.

Can surgery make my ear look normal again?

Surgery can often improve the contour and reduce thickness, but a completely normal appearance is not always achievable.

Will it come back after surgery?

A further injury can cause a new haematoma, so protective headgear is advised if you return to contact sport.

Is cauliflower ear the same as prominent ears?

No. Prominent ears are a developmental shape that sticks out from the head and is treated with otoplasty. Cauliflower ear is scarring and thickening caused by injury, although both can affect how the ear looks.

Mr Reza Nassab — Consultant Plastic Surgeon

Written & Medically Reviewed by

Mr Reza Nassab

FRCS (Plast) GMC Specialist Register — Plastic Surgery RCS England Certificate in Cosmetic Surgery MBA MSc

Mr Reza Nassab is an award-winning Consultant Plastic Surgeon on the GMC Specialist Register in Plastic Surgery, and holds the Royal College of Surgeons of England Certification in Cosmetic Surgery. He practises at CLNQ Deansgate Hospital in Manchester; Knutsford, Cheshire; Dubai and London, and is a member of BAPRAS and BAAPS. Mr Nassab has published original research in PRS, Aesthetic Surgery Journal, and JPRAS and lectures internationally on advanced surgical techniques.