Lack of informed consent can support a medical malpractice claim in Mississippi when a physician fails to disclose material information that should have been provided before treatment and the patient suffers an injury connected to that failure. Mississippi law treats lack of informed consent as a medical malpractice theory that generally requires proof of duty, breach, causation, and injury.
A signed consent form can be important evidence, but it does not automatically establish that a patient gave informed consent. Mississippi courts have looked beyond the signature to the information provided, the risks and alternatives that should have been disclosed, the medical circumstances, and whether the missing information would have affected the decision of a reasonably prudent patient.
Brad Morris Law Firm, PLLC helps patients and families evaluate medical malpractice concerns in Oxford, Tupelo, and nearby Mississippi communities, including cases involving questions about what a physician explained before treatment.
Learn more about Mississippi medical malpractice claims:
https://www.bradmorrislawfirm.com/mississippi-medical-malpractice-lawyers/
Brad Morris
Attorney
What Informed Consent Means in Mississippi
Informed consent is more than obtaining a signature before a procedure. It concerns whether the patient received enough meaningful information to make an informed decision about treatment.
Mississippi informed consent law recognizes that a physician is not required to disclose every possible complication. The focus is on material risks associated with the proposed procedure and on information that matters to the patient’s treatment decision.
Depending on the procedure and the medical circumstances, the informed consent discussion may address:
- The nature and purpose of the proposed treatment or procedure
- Material risks and possible complications
- Expected benefits
- Available treatment alternatives
- The risks and benefits of reasonable alternatives
- The likely consequences of declining or delaying treatment
Mississippi law also requires expert testimony in informed consent malpractice claims to establish the material risks and available alternatives of the medical procedure. In Whittington v. Mason, the Mississippi Supreme Court held that a plaintiff must present expert testimony to establish which risks and alternatives were material and should have been disclosed.
The court explained that factors affecting materiality can include the frequency of a risk, the potential severity of the harm, and the cost and availability of an alternative procedure.
Source:
https://law.justia.com/cases/mississippi/supreme-court/2005/co26811.html
What Must a Patient Prove in a Lack-of-Informed-Consent Claim?
A lack-of-informed-consent claim is not established simply because a complication occurred after treatment. The patient must connect the alleged disclosure failure to the injury.
Mississippi cases identify four basic parts of an informed consent claim:
- Duty: A physician-patient relationship created a duty to provide legally sufficient information and obtain informed consent for the proposed treatment.
- Breach: The physician failed to disclose a material risk or available alternative that should have been disclosed.
- Causation: The disclosure failure affected the treatment decision under Mississippi’s objective causation standard.
- Injury: The patient suffered an injury connected to the undisclosed risk or alleged failure.
For causation, Mississippi applies an objective test. The question is whether a reasonably prudent patient, fully informed of the material known risks, would have consented to the proposed treatment.
That objective causation rule comes from Reikes v. Martin. Later Mississippi decisions clarified that expert testimony is still required to establish the material medical risks and available alternatives that should have been disclosed.
Source:
https://law.justia.com/cases/mississippi/supreme-court/1985/53915-0.html
A bad medical result alone does not prove lack of informed consent. The claim must focus on what information should have been disclosed, whether it was disclosed, whether the missing information would have affected the decision, and whether the undisclosed risk caused injury.
When Lack of Informed Consent May Become Medical Malpractice
An attorney reviewing a possible informed consent claim may examine questions such as:
- What procedure or treatment did the patient authorize?
- What did the physician explain before the procedure?
- Which risks were identified in the medical records or consent documents?
- Were material risks explained in understandable terms?
- Were reasonable alternatives discussed?
- Was the patient given a meaningful opportunity to ask questions?
- Did the patient receive written educational materials?
- Would a reasonably prudent patient have declined the treatment if fully informed?
- Did the undisclosed risk occur?
- Did that risk cause the injury for which damages are being claimed?
- What expert testimony is available to identify the material risks and alternatives?
These questions show why informed consent cases often depend on both medical evidence and legal analysis.
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Why Expert Testimony Matters
Expert testimony is especially important in Mississippi informed consent cases because jurors generally cannot determine on their own which medical risks were material, which alternatives were reasonably available, or whether the alleged disclosure failure caused the claimed injury.
In Whittington v. Mason, the Mississippi Supreme Court held that expert testimony is required to establish the material risks and available alternatives of a medical procedure.
On August 6, 2026, the Mississippi Supreme Court again addressed the expert testimony requirement in Brown v. Davey-Sullivan. The court stated that a lack-of-informed-consent claim is a medical malpractice action requiring expert testimony. Because the plaintiff in that case did not produce the required expert evidence, the informed consent claim could not proceed.
Source:
https://law.justia.com/cases/mississippi/supreme-court/2026/2024-ca-00693-sct.html
Does Signing a Consent Form Defeat an Informed Consent Claim?
Not necessarily. A signed form can support a physician’s position that consent was obtained, but Mississippi case law shows that the signature does not automatically establish that the consent was informed.
In Barner v. Gorman, the Mississippi Supreme Court explained that a signed waiver does not always prove informed consent. The court found that the evidence was not conclusive when there was a dispute about what risks had been explained and whether the disclosure was specific to the treatment.
Source:
https://law.justia.com/cases/mississippi/supreme-court/1992/90-ca-914-1.html
A consent form may show authorization for a procedure. The broader informed consent question can still involve what information the patient received before giving that authorization.
Relevant evidence may include:
- The signed consent form
- Physician progress notes
- Preoperative notes
- Nursing records
- Procedure-specific educational materials
- Hospital forms
- Patient portal messages
- Emails or written instructions
- Notes documenting questions asked by the patient
- Records identifying risks, benefits, and alternatives
- Testimony from the patient, physician, family members, nurses, or other witnesses
- Expert testimony about the material risks and available alternatives
The signature is one piece of evidence. The full consent process can matter just as much.
What Is the Difference Between No Consent and Lack of Informed Consent?
These concepts can overlap, but they are not identical.
A lack-of-informed-consent claim generally involves a patient who agreed to treatment but alleges that the agreement was not adequately informed because material information was not disclosed.
A no-consent claim may involve a procedure that the patient did not authorize at all.
Brown v. Davey-Sullivan addressed this distinction in 2026. The Mississippi Supreme Court recognized that a medical procedure performed without consent may present a battery theory for which expert testimony might not be required when the claim does not depend on medical judgment.
The Brown case also shows why the distinction can become more complicated when consent was initially given and later withdrawn. In Brown, the patient had signed a consent form before labor and later said that she withdrew consent during the procedure. The court held that expert testimony was required because the claim depended on whether the physician could have stopped or avoided the procedure without causing harm.
Source:
https://law.justia.com/cases/mississippi/supreme-court/2026/2024-ca-00693-sct.html
Because the legal theory can affect the evidence that must be presented, it is important to identify whether the dispute concerns no consent, inadequate disclosure, withdrawal of consent, or a combination of those issues.
What Medical Records Can Show About Informed Consent
Medical records can help reconstruct what happened before treatment.
Records may show:
- The exact procedure the patient authorized
- When the consent form was signed
- Which risks were listed
- Whether alternatives were discussed
- Whether a physician documented a consent conversation
- Whether educational materials were provided
- Whether the patient asked questions
- Whether the patient expressed hesitation or refused part of the proposed treatment
- Whether consent changed before or during the procedure
- Which complication later occurred
- How the complication was treated
Medical records do not always answer every question. A record may contain a signed form without documenting the full conversation. It may also contain a physician note stating that risks and alternatives were discussed without identifying each subject covered.
Those gaps can make testimony and expert review especially significant.
What Should You Preserve if You Have Questions About Informed Consent?
If you are concerned about what you were told before a procedure, preserve the records and information that may help document the consent process.
Useful materials can include:
- Copies of every consent form you signed
- Hospital and physician records
- Discharge instructions
- Preoperative instructions
- Patient education materials
- Patient portal messages
- Emails and text messages related to the procedure
- Notes you made before or after treatment
- Names of family members or other people who heard the consent discussion
- Records from later physicians who treated the complication
- Bills and records showing financial losses related to the injury
You should avoid altering or annotating original documents. Keep separate notes describing what you remember, including when discussions occurred and who was present.
How Long Do You Have to Bring a Mississippi Medical Malpractice Claim?
Mississippi Code Section 15-1-36 generally requires medical malpractice claims against covered health care providers to be filed within two years from the date the alleged act, omission, or neglect was or, with reasonable diligence, should have been known or discovered.
The statute contains exceptions and additional rules, including provisions addressing minors, certain concealed claims, foreign objects, and a seven-year outer limit in many situations. It also generally requires at least 60 days of written notice before beginning an action based on a health care provider’s professional negligence.
Because the correct deadline depends on the facts, the parties, and the type of claim, you should not assume that every informed consent case has the same filing date.
Mississippi Code Section 15-1-36:
https://law.justia.com/codes/mississippi/title-15/chapter-1/section-15-1-36/
How an Attorney Can Evaluate an Informed Consent Claim
An informed consent case can require a detailed comparison between the medical records, the patient’s recollection, the physician’s documentation, and expert medical opinions.
An attorney may review:
- Whether the claim involves inadequate disclosure, no consent, or withdrawal of consent
- Which medical risks and alternatives were material
- Whether the complication that occurred was one of the undisclosed risks
- Whether expert testimony supports the alleged disclosure failure
- Whether a reasonably prudent patient would have made a different treatment decision
- Whether the medical records support or conflict with the accounts of the consent discussion
- Whether the injury and damages can be connected to the alleged failure
- Which filing deadlines and pre-suit requirements apply
Learn more about Attorney Brad Morris:
https://www.bradmorrislawfirm.com/attorney-brad-morris/
Talk With a Mississippi Medical Malpractice Attorney
Questions about informed consent often depend on details that are not visible from the consent form alone. The medical records, the timing of the discussion, the risks and alternatives, expert opinions, and the injury that followed can all matter.
Brad Morris Law Firm, PLLC can review medical records, consent documents, and the circumstances surrounding a procedure and explain the legal options that may apply. The firm serves clients from offices in Oxford and Tupelo, Mississippi, as well as nearby communities.
Call Brad Morris Law Firm, PLLC: (662) 300-3991
Contact the firm:
https://www.bradmorrislawfirm.com/contact/
This article is for general informational purposes only. It is not legal advice and does not create an attorney-client relationship. Speak with an attorney about the facts, evidence, and deadlines that apply to your situation.
Sources
Brown v. Davey-Sullivan, Mississippi Supreme Court, August 6, 2026:
https://law.justia.com/cases/mississippi/supreme-court/2026/2024-ca-00693-sct.html
Whittington v. Mason, Mississippi Supreme Court, June 16, 2005:
https://law.justia.com/cases/mississippi/supreme-court/2005/co26811.html
Reikes v. Martin, Mississippi Supreme Court, 1985:
https://law.justia.com/cases/mississippi/supreme-court/1985/53915-0.html
Barner v. Gorman, Mississippi Supreme Court, 1992:
https://law.justia.com/cases/mississippi/supreme-court/1992/90-ca-914-1.html
Mississippi Code Section 15-1-36:
https://law.justia.com/codes/mississippi/title-15/chapter-1/section-15-1-36/