the Development of Multiple Openings in a Sebaceous Cyst - Dermatology

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The opening of the sebaceous cyst has split into two?


Hello Doctor, I would like to inquire about my child at home (one year and seven months old).
When my child was about six months old, a sebaceous cyst developed below the ear (on the cheek side).
So far, it has been inflamed once, and the doctor mentioned that since my child is still very young, if there are no recurrent infections, we can wait until they are a bit older to address it.
Previously, there was only one black opening, but recently another black opening has appeared.
There doesn't seem to be any signs of inflammation.
Due to the pandemic, we prefer to avoid going to the hospital, so I would like to ask the doctor if we need to see a doctor immediately.
Could this be due to worsening? It doesn't seem like two separate cysts, but rather one cyst with two small black openings on top.
Thank you, Doctor.

Candice, 30~39 year old female. Ask Date: 2021/08/09

Dr. Wu Yuxin reply Dermatology


If there is no inflammation, there is no need to seek medical attention temporarily.

Reply Date: 2021/08/09

More Info


Sebaceous cysts, also known as epidermoid cysts, are common benign growths that can occur anywhere on the body, including the face. They are typically filled with keratin, a protein found in skin, hair, and nails. In your case, it seems that your child has developed a sebaceous cyst near the ear, which has opened up to form multiple openings.

The development of multiple openings in a sebaceous cyst can occur for several reasons. One possibility is that the cyst has become inflamed or infected, leading to the formation of additional openings as the body attempts to drain the contents. However, since you mentioned that there has been no recent inflammation or discomfort, it is also possible that the cyst is simply maturing and the skin over it is thinning, allowing for more than one opening to form.

In children, sebaceous cysts are often harmless and may not require immediate treatment unless they become infected or cause discomfort. The fact that your child has had only one episode of inflammation and is currently asymptomatic is a good sign. However, the appearance of a new opening can be concerning, and it is essential to monitor the cyst closely.

Here are some considerations regarding your situation:
1. Observation: If the cyst is not causing any pain, redness, or swelling, and your child is otherwise healthy, it may be reasonable to continue monitoring it at home. Keep an eye on any changes in size, color, or symptoms.

2. Infection Signs: If you notice any signs of infection, such as increased redness, warmth, swelling, or pus drainage, it would be advisable to consult a healthcare provider. Infections may require antibiotics or other treatments.

3. Consultation: Given your child's age and the changes in the cyst, it might be beneficial to consult a pediatric dermatologist or your child's pediatrician for a professional opinion. They can assess whether the cyst requires intervention or if it is safe to continue monitoring it.

4. When to Seek Immediate Care: If your child experiences significant pain, fever, or if the cyst appears to be rapidly changing, it would be prudent to seek medical attention sooner rather than later.

5. Future Treatment Options: If the cyst continues to be a concern or if it becomes recurrently inflamed, a healthcare provider may discuss treatment options, which could include drainage or surgical removal, especially if it affects your child's quality of life or self-esteem.

In summary, while the development of multiple openings in a sebaceous cyst can be concerning, it does not always indicate a serious problem, especially if there are no signs of infection. Monitoring the cyst and consulting with a healthcare professional when necessary is the best approach. If you have any doubts or if the situation changes, do not hesitate to reach out to a medical professional for guidance.

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