**1. Introduction**

Hidradenitis suppurativa (HS) is characterized as a chronic inflammatory, recurrent, and debilitating skin disorder that affects the follicular epithelium, specifically of apocrine-gland-bearing regions such as axillae, inframammary folds, groin, perineal, and/or perigenital [1–3]. Even though HS is almost three times more common in women, the perineal disease is particularly seen more often in males, and it is related to higher morbidity compared to other regions [1, 2].

HS often presents with very painful, inflamed skin nodules, abscesses, pusdischarging tunnels (known as sinus tracts and fistulas), and scarring. The diagnosis is made clinically and based on typical lesions, affected regions, and progression (chronicity, persistent lesions, and recurrence) [3, 4]. HS is a difficult disease to

diagnose, given its multiple differential diagnoses that can lead to erroneous conclusions, with a diagnostic delay that can reach 12 years, leading to disease recurrence and progression [1, 3, 4].

Owing to its diversified presentation, with intense chronic pain, continuous purulent secretion, and bad smell, HS has a profound negative influence on patients' private and professional lives, affecting their economic condition and quality of life. Thus, the topic deserves to be highlighted, since HS is a chronic disease with high morbidity and a negative impact on health systems and society [4].
