Do you need a referral for a second medical opinion?

A second opinion is an independent review of a diagnosis, test result, or suggested treatment. The reviewing clinician usually needs relevant records, such as consultation notes, imaging reports, laboratory results, and a current medication list. A referral can help your existing doctor share the clinical question and records, although some services allow you to request an appointment directly.

Referral requirements can differ between specialties, facilities, and health plans. A second opinion does not automatically replace the first clinician’s advice; it gives you another professional assessment to compare with the original plan.

Ask the clinic you want to use whether it accepts self-booked appointments and which documents it needs. You can also ask your current doctor for a referral or a copy of your records. Explain whether you want confirmation of the diagnosis, review of treatment choices, or advice about another option.

Take the original report, a list of symptoms and medicines, and any questions to the appointment. Tell both clinicians if a treatment decision has a time limit so the review does not delay necessary care.

Do not wait for a routine second-opinion appointment if you have severe breathing difficulty, new weakness on one side, sudden confusion, fainting, heavy bleeding, or chest pressure. Seek urgent medical care for these warning signs, even while arranging a later review of your diagnosis or treatment.

Ask: Do I need a referral for the clinician I have chosen? Which records should be sent? How soon should the second opinion happen? Will the review change my current treatment plan? Who should I contact if my symptoms worsen while I am waiting?