Reviewed By:
Scott Nass, MD, MPA, FAAFP, AAHIVS (Primary Care)
Dr. Nass received dual medical degrees from the David Geffen School of Medicine at UCLA and Charles R. Drew University in Medicine and Science. He completed Family Medicine residency at Ventura County Medical Center with subsequent fellowships at Ventura, University of North Carolina-Chapel Hill, George Washington University, and University of California-Irvine. He holds faculty appointments at Keck School of Medicine of USC, Loma Linda University School of Medicine, and Western University of Health Sciences.
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
Content updated on Mar 31, 2024
Following the Medical Content Editorial Policy
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There is a lump
Redness of the skin
Rashes
Nodule with central crusting
Affected area of skin has stinging or tingling
Lump in the breast
Hot skin
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With a free 3-min Epidermoid Cyst quiz, powered by Ubie's AI and doctors, find possible causes of your symptoms.
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Biological Sex - helps us provide relevant suggestions for male vs. female conditions.
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History - considers past illnesses, surgeries, family history, and lifestyle choices.
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Also called sebaceous cysts, these harmless bumps under the skin are more common in men. They can be caused by skin irritation, injury, or surgery.
Your doctor may ask these questions to check for this disease:
Since they're harmless, they usually don't require treatment. However, a simple surgery can be performed for infected cases or those causing discomfort.
Maeda T, Mishima K, Imanishi J, Shirahata M, Suzuki T, Adachi JI, Sasaki A, Nishikawa R. An Epidermoid Cyst of the Thoracic Spine in an Elderly Patient. World Neurosurg. 2019 Jul;127:113-116. doi: 10.1016/j.wneu.2019.03.262. Epub 2019 Apr 2. PMID: 30951916.
https://www.sciencedirect.com/science/article/abs/pii/S1878875019309428?via%3DihubKhalid S, Khan SA, Aurangzeb A, Muhammad G, Khan Afridi EA, Muhammad D. Intradiploic Epidermoid Cyst Of The Skull. J Ayub Med Coll Abbottabad. 2021 Apr-Jun;33(2):349-351. PMID: 34137560.
https://jamc.ayubmed.edu.pk/jamc/index.php/jamc/article/view/9211/3122Sîrbu OM, Chirteş AV, Mitricã M, Sîrbu CA. Spinal Intramedullary Epidermoid Cyst: Case Report and Updated Literature Review. World Neurosurg. 2020 Jul;139:39-50. doi: 10.1016/j.wneu.2020.03.207. Epub 2020 Apr 13. PMID: 32298825.
https://www.sciencedirect.com/science/article/abs/pii/S1878875020306781?via%3DihubLee S, Jang M, Mann FA, Choi S, Lee JK, Kim JK. Intradiploic epidermoid cyst in a dog. J Am Vet Med Assoc. 2020 Jul 15;257(2):183-188. doi: 10.2460/javma.257.2.183. PMID: 32597736.
https://avmajournals.avma.org/view/journals/javma/257/2/javma.257.2.183.xmlCui X, Wu X, Yao X. Surgical treatment for a giant epidermoid cyst on the buttock. Dermatol Ther. 2020 May;33(3):e13275. doi: 10.1111/dth.13275. Epub 2020 Feb 21. PMID: 32061013.
https://onlinelibrary.wiley.com/doi/10.1111/dth.13275Male, 30s
I got more answers in one minute through your site than I did in three hours with Google.
(Sep 29, 2024)
Male, 20s
My experience was great. I was worried, but the symptom checker helped me narrow down what it might be. I feel a little relieved compared to when I first started, and it gives me a starting point for what my symptoms could mean.
(Sep 27, 2024)
Male, 50s
The questions asked and possible causes seemed spot on, putting me at ease for a next-step solution.
(Sep 26, 2024)
Female, 40s
I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Reviewed By:
Scott Nass, MD, MPA, FAAFP, AAHIVS (Primary Care)
Dr. Nass received dual medical degrees from the David Geffen School of Medicine at UCLA and Charles R. Drew University in Medicine and Science. He completed Family Medicine residency at Ventura County Medical Center with subsequent fellowships at Ventura, University of North Carolina-Chapel Hill, George Washington University, and University of California-Irvine. He holds faculty appointments at Keck School of Medicine of USC, Loma Linda University School of Medicine, and Western University of Health Sciences.
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1