The evaluation of hidradenitis suppurativa includes a history and physical exam.

Physical findings in someone with hidradenitis suppurativa include:

• Swollen, tender lump in the skin
• Skin redness

The diagnosis of hidradenitis suppurativa is made during physical exam.

Tests that may be used to evaluate hidradenitis suppurativa include:

• Complete blood count
• Blood cultures
• Culture of the fluid from the infection