Under New York law, informed consent means that before performing any medical procedure, a physician must explain the material risks, benefits, and alternatives to the patient.
A doctor is required to disclose information that a reasonably prudent medical professional would provide in a similar situation. Only after receiving this information can a patient make an informed decision and agree to treatment.
If a physician fails to do this, it may be considered a lack of informed consent, which in certain cases can lead to a medical malpractice claim.
When is informed consent required?
In most non-emergency situations, doctors must obtain informed consent before proceeding with treatment.
This typically applies to:
- non-emergency medical procedures
- diagnostic procedures involving invasion of the body
- participation in medical research
In practice, consent is usually given in writing, confirming that the patient understands the risks involved.
For patients who cannot legally give consent, such as minors or individuals deemed incompetent, a parent or legal guardian may provide consent on their behalf.
Why can lack of informed consent lead to a malpractice claim?
A lack of informed consent alone does not automatically qualify as medical malpractice.
For a case to be valid, there must also be harm.
In other words, if a doctor fails to properly inform a patient about risks, and the patient later experiences complications related to those risks, there may be grounds for a claim.
The key issue is whether:
- the patient would have refused the procedure if properly informed
- and whether the undisclosed risk actually caused injury
Situations where lack of consent may not apply
There are several important exceptions where a doctor may not be required to obtain informed consent.
Emergency situations
In urgent medical situations, where delaying treatment could result in serious harm or death, doctors may proceed without consent.
Commonly known risks
In some cases, physicians may not be required to disclose risks that are considered commonly known, depending on the circumstances and standard medical practice.
Patient refusal of information
If a patient clearly states that they do not want to be informed about risks, or agrees to proceed regardless, this may limit liability.
Medical judgment
In limited situations, a physician may argue that full disclosure could negatively impact the patient’s condition. Courts evaluate such claims carefully.
When do you have a valid claim?
A lack of informed consent may form the basis of a medical malpractice case if you can prove:
- a procedure was performed without proper disclosure of risks
- you would not have agreed to the procedure if fully informed
- you suffered harm or complications related to those risks
These elements are critical in determining whether a claim is legally valid.
Example scenario
A patient undergoes surgery and later experiences complications that were never explained beforehand.
If the patient can show that:
- the risk was significant
- it should have been disclosed
- and they would have refused the procedure
then the case may qualify as a lack of informed consent claim. Each case depends on specific medical evidence and expert evaluation.
Why understanding informed consent matters
Medical decisions often involve complex risks, and patients rely on doctors to provide clear and complete information.
When that process breaks down, it not only affects trust — it can also have serious medical and legal consequences.
Understanding your rights helps you:
- make informed healthcare decisions
- recognize when something went wrong
- determine whether legal action may be possible
When to review your situation
If you believe a medical procedure was performed without proper explanation of risks, it is important to carefully review the circumstances.
Each case depends on:
- what information was provided
- what risks were involved
- and what outcome occurred
Evaluating these factors is essential to understanding whether a claim may exist.