**2. Historical context**

The term hidradenitis suppurativa is derived from the Greek words "*hidros*" (sweat) and "*aden*" (glands). Also known as reverse acne, it was first described by Velpeau, a French physician, in 1839, as superficial abscesses of a peculiar location, affecting the armpits, breasts, and perianal region [4, 5]. In 1854, the French surgeon Verneuil suggested some association based on clinical data with sweat glands and named the disease after him. In 1893, Pollitzer and Dubreuilh established a clear etiopathogenesis associated with apocrine sweat glands [5]. Despite these discoveries, there were not enough studies to understand HS as a disease until 1939, when Brunsting published a complete work on the subject [4–6].
