Description

Hidradenitis suppurativa (HS) is a chronic, recurrent, and disabling inflammatory disease that occurs in apocrine distribution sites such as the axilla, groin, and perianal region with a worldwide prevalence of approximately 1.5% -4.6%.The pathogenesis is excessive activation of the Th17 type immune response mediated by IL-17, IL-23, resulting in abnormal keratinization of hair follicles, obstruction of sebaceous ducts, and bacterial infection, culminating in abscesses, sinus tracts, and scarring.Patients with moderate to severe HS (Hurley stage II-III) often suffer from a severe decline in their quality of life due to recurrent infections, pain, and dysfunction, and their risk of depression is markedly elevated.Traditional treatments such as antibiotics, glucocorticoids, surgical debridement have limited efficacy, and the recurrence rate of surgery alone is as high as 50% -70%.In recent years, the use of biologic agents such as TNF-α inhibitors has dramatically improved HS outcomes, but 30% to 40% of patients still have an inadequate response to TNF-α inhibitors. Accumulating evidence suggests that the IL-17 pathway plays a key role in HS pathogenesis, that IL-17A expression is upregulated in the skin lesions of HS patients and positively correlates with disease severity. The efficacy and safety of secukinumab in combination with surgery remain unclear.