Ectocervical disease is treated by shallow excision or destruction.

A transformation zone of type 1 is characterized by visibility of the entire squamocolumnar junction on the ectocervix and, usually, the full extent of the lesion (highlighted in green) can be seen.

As a rule, superficial loop excision is performed in one step or, in case of purely ectocervical location of the lesion, CO₂ laser vaporization may be used.