Pilonidal disease
Pilonidal disease presents with a range of signs and symptoms: asymptomatic pits in the natal cleft, acute abscesses, chronic disease with persistent, discharging sinuses, or recurrent disease following previous attempts at treatment. It primarily affects the sacrococcygeal region and is a disease of young adults, generally male, and leads to pain, disability, and time lost from work. The treatment for an acute pilonidal abscess is widely accepted to be incision and drainage with the incision placed out of the natal cleft. The treatment of chronic and recurrent disease is contentious with excision and then either healing by secondary intention, primary closure, or flap closure all being suggested alongside other less aggressive approaches aimed at conserving tissue. Currently none of these treatments is ideal, although primary closure in the midline has been shown to be inferior and should not be performed.