Surgery is a medical specialty that uses operative treatment. It also refers to the place where surgery is performed, or the offices of the practitioner, the surgeon.

Surgery may also mean:

In medicine:

• In North American English, a surgical procedure or operation (e.g. "I had three surgeries").
• In British English, a doctor's office or consulting room.

In politics:

• Surgery (politics), a regular time scheduled by a British Member of Parliament to meet with constituents to discuss their concerns and issues, and by extension in British English, other such advice sessions offered by other bodies

In mathematics:

• Surgery theory, a mathematical operation used in topology; two special cases are:
  • Dehn surgery
  • Hyperbolic Dehn surgery

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