Skin biopsy is a biopsy technique in which a skin lesion is removed to be sent to a pathologist to render a microscopic diagnosis.

A sinusotomy is a surgical operation in which an incision is made in a sinus to prevent or reduce inflammation.

Sigmoidostomy is the establishment of an artificial anus by surgically creating an opening into the sigmoid colon.

Septoplasty [sep′tō·plas′tē] (Etymology: L, saeptum, septum; Gk, πλάσσειν plassein – to shape), or alternatively submucous septal resection and septal reconstruction, is a corrective surgical procedure done to straighten the nasal septum, the partition between the two nasal cavities.

Scrotoplasty, also known as oscheoplasty, is reparative or plastic surgery of the scrotum.