Black Dots in the Ear: Differential Diagnosis and When to See a Doctor

Black dots in the ear canal or pinna that swell when manipulated are not typical blackheads (which are follicular). Consider these possibilities:

Common Causes

• Infected hair follicles (folliculitis): Tender, pustular, may drain pus. Common in ear canal.
• Sebaceous cysts: Mobile, dome-shaped nodules; can become infected (red, painful).
• Keratosis obturans: Desquamated keratin buildup in ear canal; appears as dark plug.
• Melanocytic nevi (moles): Pigmented, stable; monitor for ABCDE changes.

Less Common / Serious

• Keloids: Firm, raised scars extending beyond injury site; itchy/painful.
• Basal cell or squamous cell carcinoma: Non-healing, bleeding, ulcerated lesions—especially in sun-exposed pinna.
• Melanoma: Asymmetric, irregular borders, color variation, diameter >6 mm, evolving.
• Exostoses/osteomas: Bony growths in canal (surfer's ear); not black dots.

When to See a Doctor

• Lesion grows, changes color/shape, bleeds, ulcerates
• Pain, hearing loss, discharge
• History of skin cancer, immunosuppression
• Uncertainty about diagnosis

Do Not Attempt to Pop

Manipulation risks infection, trauma to canal skin or tympanic membrane, and seeding of malignant cells if cancerous.

Evaluation: otoscopy, possibly biopsy. Treatment depends on diagnosis: antibiotics, excision, cryotherapy, referral.