Unusual Acne: Causes and Health Concerns - Dermatology

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The acne is large and foul-smelling?


Doctor, my acne appears in unusual places.
They are quite large and I can't seem to fully extract them; there are always white, stringy substances.
One of them had a very foul odor when I squeezed it, and I'm worried that it might indicate a health issue.

Guan Shui, 20~29 year old female. Ask Date: 2005/12/27

Dr. Jiang Zheen reply Dermatology


What you have is not a pimple, but an epidermoid cyst, also known as a sebaceous cyst, which needs to be surgically removed.
Wishing you peace, Jesus loves you.

Reply Date: 2005/12/27

More Info


Understanding unusual acne, particularly when it presents in atypical locations and with unusual characteristics, can be concerning for many individuals. The symptoms you describe—large, persistent acne lesions that produce a foul odor and contain white, stringy material—may indicate a few potential underlying issues that warrant further exploration.

Firstly, it is important to clarify that acne is a common skin condition characterized by the presence of comedones (clogged pores), papules, pustules, and sometimes cysts. While typical acne often occurs on the face, back, and shoulders, it can also manifest in less common areas such as the chest, arms, or even the buttocks. The presence of large, painful lesions that do not respond to standard acne treatments may suggest a different condition altogether.

One possibility is the presence of hidradenitis suppurativa, a chronic skin condition that leads to the formation of painful lumps under the skin, often in areas where skin rubs together, such as the armpits, groin, and under the breasts. These lumps can become inflamed and may drain pus, which can have a foul odor. Hidradenitis suppurativa is often mistaken for acne but is a distinct condition that requires different management strategies.

Another consideration could be folliculitis, which is the inflammation of hair follicles. This condition can occur due to bacterial or fungal infections, leading to red, swollen bumps that may be painful and can produce pus. If the lesions are particularly large and have a strong odor, it may indicate a more severe infection that could require medical intervention.

Additionally, the presence of a strong odor and the description of "white, stringy" material could suggest the possibility of an infected cyst or an abscess. These conditions occur when a hair follicle or sebaceous gland becomes blocked and infected, leading to the accumulation of pus. An abscess can be quite painful and may require drainage and antibiotic treatment.

From a health perspective, the presence of these symptoms could indicate an underlying issue that may need to be addressed. Factors such as hormonal imbalances, dietary influences, or even stress can exacerbate acne and related skin conditions. It is also essential to consider any personal or family history of skin conditions, as genetic predispositions can play a significant role in the development of skin issues.

Given the complexity of your symptoms, it is highly advisable to consult a dermatologist or healthcare provider for a thorough evaluation. They may recommend diagnostic tests, such as cultures or biopsies, to determine the exact nature of the lesions and to rule out any serious underlying conditions. Treatment options may include topical or systemic antibiotics, anti-inflammatory medications, or even surgical interventions for cysts or abscesses.

In summary, while acne is a common condition, the unusual presentation you describe could indicate a more complex issue that requires professional assessment. Early intervention can help prevent complications and improve your skin health, so seeking medical advice is a crucial step in addressing your concerns.

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