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What causes hidradenitis suppurativa?

Hidradenitis suppurativa occurs when hair follicles near sweat glands repeatedly become blocked. The blockage causes bacteria to form. The bacteria causes infection under the skin, and the skin becomes inflamed. Doctors are unsure of why the blockages occur.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.