What to know about thyroid cancer surgery

The surgeon may remove one thyroid lobe, the whole thyroid, or selected nearby lymph nodes. The choice depends on the tumour’s size, position, type and relationship with surrounding structures. Tissue removed during the operation is examined to confirm the diagnosis and guide further care.

Important issues to discuss include the recurrent laryngeal nerves, which help control the voice, and the parathyroid glands, which help regulate calcium. Temporary or lasting changes can occur, so your team explains symptoms to watch for and the monitoring plan. If the whole thyroid is removed, thyroid hormone replacement is commonly part of ongoing care.

Before surgery, share all medicines, allergies, previous neck operations and medical conditions. Ask whether you need a pre-operative voice assessment, blood tests or changes to medicines. Plan for a quiet recovery period and follow the wound-care and activity instructions given by the surgical team.

After the operation, attend the scheduled review and complete any blood tests. Report voice changes, tingling around the mouth or fingers, muscle cramps, wound redness, drainage or fever. A second opinion can be useful when the proposed extent of surgery or the need for additional treatment is unclear.

Get urgent medical help for breathing difficulty, rapidly enlarging neck swelling, heavy wound bleeding or inability to swallow fluids. Contact the surgical team promptly for new or worsening hoarseness, facial or finger tingling, muscle spasms, fever or increasing wound pain. Follow the discharge instructions for after-hours contact.

Will you remove one lobe, the whole thyroid or nearby lymph nodes, and what determines that choice? What are the possible effects on voice and calcium levels? Will I need thyroid hormone replacement or radioactive iodine afterward? How should I prepare, and which symptoms after surgery require urgent help?