Pea Sized Bump Behind Ear – Causes, Symptoms & When to See a Doctor
A small lump or pea-sized bump behind the ear can be harmless or a sign of infection. Learn the common causes, symptoms, and when you should worry.
Harsh Patel
Pea Sized Bump Behind Ear – Causes & What It Means
Have you noticed a small, pea-sized bump behind your ear? In most cases, these bumps are harmless, but sometimes they can signal an underlying condition that needs medical attention. Here’s what you need to know.
Common Causes of a Pea-Sized Bump Behind the Ear
✅ 1. Swollen Lymph Node
Usually occurs when your body is fighting an infection (cold, flu, throat infection).
Soft, mobile, and may be tender to touch.
Disappears in 1–2 weeks once infection resolves.
✅ 2. Sebaceous Cyst
A non-cancerous bump caused by clogged oil glands.
May feel rubbery and smooth.
Can stay for years unless it gets infected or irritated.
✅ 3. Lipoma
A soft, fatty growth under the skin.
Non-cancerous and usually painless.
Grows slowly and doesn’t require treatment unless it’s uncomfortable.
✅ 4. Mastoiditis
A rare but serious infection of the bone behind the ear.
May be accompanied by pain, fever, and ear discharge.
Requires immediate medical attention.
✅ 5. Acne or Boil
Due to clogged pores or hair follicles.
May appear red, swollen, and painful.
Can be treated with warm compresses or topical antibiotics.
When to See a Doctor
Seek medical advice if the bump:
Is painful or growing rapidly
Is red, hot, or discharges pus
Comes with fever or ear pain
Lasts more than 2 weeks without changes
Diagnosis & Treatment Options
Your doctor may:
Perform a physical exam
Recommend an ultrasound or biopsy (if needed)
Prescribe antibiotics for infections
Suggest removal if it's a cyst or lipoma causing discomfort
Home Care Tips
Apply warm compresses if it’s tender or infected
Avoid squeezing or popping the bump
Keep the area clean and dry
Conclusion
A pea-sized bump behind the ear is usually not serious, especially if it’s painless and doesn't grow. However, always monitor for signs of infection or other symptoms. When in doubt, consult a healthcare provider to rule out any underlying conditions.
