Patients with a positive family history need closer surgical monitoring because primary disease will manifest earlier. A remarkable long-term recurrence rate exceeding 50% after 25 years places a much higher disease burden on patients with a positive family history. All available interventions known to reduce recurrence rate should be applied to this group of patients.

MB application halves the long-term risk of recurrence for pilonidal sinus patients. This significant reduction in recurrence rate can be achieved by a single careful injection of non toxic inexpensive dye into the sinus at the start of the operation. MB application should therefore be considered as an integral part of pilonidal sinus surgery.

Razor hair removal increases the rate of long-term recurrence after surgery for pilonidal sinus disease and therefore should not be recommended. However, the rationale for hair removal in pilonidal sinus disease is compelling. Other epilation techniques such as laser hair removal should be investigated in appropriate studies.

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