Head Bump with Purple Spots: Possible Causes and Urgency of Medical Evaluation

Potential Causes

1. Blood Clot (Cephalhematoma)

Collection of blood under the scalp from a broken vessel. Raised, soft, fluctuant lump. Common in newborns; adults after head injury.

2. Abscess

Localized pus collection from bacterial infection of scalp tissue or hair follicles. Can cause pain, swelling, fever.

3. Cyst

Sac-like structure filled with fluid/semi-solid material. Usually benign but can cause discomfort.

4. Insect Bite or Sting

Localized swelling, redness, itching; may develop fluid-filled bump if infected.

5. Skin Cancer

Rarely, a bump with purplish dots may indicate melanoma (raised, dark lesion).

Action

Seek medical attention promptly for sudden appearance or changes. Doctor may perform exam, blood work, imaging, or biopsy for diagnosis and treatment.