Is Failure to Inform a Patient About Risks Medical Negligence?

Key Takeaways
- Failure to inform a patient about significant risks can amount to medical negligence in India. A doctor is expected to provide sufficient information about a proposed treatment or procedure so that the patient can make a meaningful decision about whether to undergo it.
- Valid medical consent requires more than obtaining a signature. Consent should be voluntary, given by a competent patient and based on adequate information regarding the nature of treatment and its substantial risks.
- Doctors do not have to disclose every remote or theoretical complication. The disclosure requirement principally concerns substantial or significant risks that are relevant to the patient’s decision.
- Samira Kohli v. Dr. Prabha Manchanda & Anr., (2008) 2 SCC 1 is the leading Indian Supreme Court case on medical consent. The Court explained when consent is real and valid and what information should ordinarily be provided before treatment.
- Consent for one medical procedure does not normally authorise a substantially different procedure. Fresh consent may be required before an additional major intervention unless an emergency makes obtaining consent impracticable.
- The occurrence of a complication does not automatically prove negligence. Medical negligence depends on breach of the applicable standard of care and not merely on an unsuccessful treatment or adverse result.
- Emergency treatment is an important exception to the general consent rule. Where urgent intervention is necessary to save life or preserve health and consent cannot reasonably be obtained, treatment may be legally justified.
What Is Informed Consent?
Informed consent means the voluntary agreement of a patient to medical treatment after receiving sufficient information about the proposed procedure.
Medical consent is not simply permission to enter a hospital or undergo treatment. It represents a patient’s decision concerning what may be done to the body.

A meaningful consent process therefore generally requires disclosure of the nature of the proposed procedure, its purpose, important risks, expected benefits, available alternatives and relevant consequences of refusing treatment.
The Supreme Court considered these principles extensively in Samira Kohli v. Dr. Prabha Manchanda & Anr., (2008) 2 SCC 1. The Court explained that consent must be real and valid. This means that the patient must have capacity and competence to consent, the decision must be voluntary and sufficient information regarding the procedure must be provided.
Informed consent is therefore primarily a process of communication between the doctor and patient rather than merely a written formality.
Is Failure to Inform a Patient About Risks Medical Negligence?
Yes, failure to inform a patient about substantial or significant risks may amount to medical negligence in India, depending on the circumstances of the case.

Once a doctor accepts responsibility for treating a patient, certain legal and professional duties arise. These include exercising reasonable skill and care and obtaining valid consent where medical intervention requires it.
If an important risk associated with a proposed treatment is not disclosed, the patient may be deprived of the opportunity to make an informed choice.
This can become relevant even where the procedure itself was technically performed correctly.
For example, a surgeon may exercise appropriate skill during an operation, but a separate legal issue may arise if a serious known risk associated with that operation was never explained before consent was taken.
Thus, negligence in treatment and negligence relating to disclosure are connected but not necessarily identical.
What Information Must a Doctor Give Before Treatment?
The amount and nature of information required depend on the treatment involved and the circumstances of each case. There is no identical disclosure requirement for every medical procedure.
However, certain information is particularly important.
Nature and Purpose of the Procedure
The patient should ordinarily know what medical procedure is proposed and the reason for recommending it.

Consent to an examination or diagnostic procedure cannot automatically be treated as consent to every additional operation that a doctor may later consider beneficial.
The patient must therefore have a basic understanding of what is actually proposed.
Expected Benefits of Treatment
The purpose and expected benefit of the procedure should ordinarily be explained.
This does not mean that a doctor guarantees a successful result. Medical science cannot ensure that every procedure will succeed.
Instead, the patient should understand what the treatment is intended to achieve.
Substantial or Significant Risks
Important risks connected with the procedure should be disclosed before consent is obtained.
The significance of a risk depends both on the likelihood of its occurrence and the seriousness of its consequences.
For instance, the possibility of permanent disability, serious injury, loss of an organ, loss of reproductive capacity or another grave consequence may be important even where its statistical probability is relatively low.
Reasonable Alternatives
Where recognised alternatives are available, their existence may also be relevant to informed decision-making.

A patient may have a choice between surgical and non-surgical treatment, between different procedures or between immediate treatment and careful observation.
Meaningful consent may therefore require sufficient information about reasonable alternatives where they materially affect the decision.
Consequences of Refusing or Delaying Treatment
In some circumstances, the consequences of refusing treatment are also important.
A patient cannot properly compare options without understanding not only the risks associated with undergoing the treatment but also the possible consequences of not undergoing it.
Does a Doctor Have to Disclose Every Possible Risk?
No. A doctor is not expected to disclose every possible, remote or purely theoretical risk connected with treatment.
Almost every medical intervention carries numerous possible complications. Requiring doctors to provide an exhaustive catalogue of every theoretical possibility would not necessarily improve patient understanding.
The focus is instead on adequate disclosure.
The Supreme Court in Samira Kohli recognised that information sufficient for a balanced treatment decision should be provided, while remote risks need not necessarily be discussed in every case.
Several factors can determine whether a particular risk should have been disclosed:
- Probability of the risk: A well-recognised and reasonably foreseeable complication may require greater disclosure than an extremely remote possibility.
- Seriousness of the consequence: A comparatively uncommon complication may nevertheless be important if it could cause death, paralysis, infertility or permanent impairment.
- Nature of the procedure: Greater explanation may reasonably be expected before major elective surgery than during urgent emergency treatment.
- Available alternatives: Disclosure can assume greater importance where another recognised treatment carries materially different risks.
- Patient-specific circumstances: A particular complication may have special importance because of the patient’s health condition or other relevant circumstances.
Therefore, the legal question is not simply whether a particular complication was mentioned. The question is whether the information provided was reasonably sufficient in the circumstances.
What Did the Supreme Court Hold in Samira Kohli v. Dr. Prabha Manchanda?
Samira Kohli v. Dr. Prabha Manchanda & Anr. is the principal Indian case dealing with consent for medical treatment.
The patient had been admitted for diagnostic procedures. While she was under anaesthesia, additional surgery involving removal of reproductive organs was performed.
The central issue was whether the consent originally given was sufficient to authorise the additional surgical procedure.
The Supreme Court laid down important principles relating to medical consent.
Consent Must Be Real and Valid
Consent must be given voluntarily by a patient who has the capacity and competence to make the decision.
The patient must also receive an adequate level of information about the nature of the procedure.
Therefore, a signature on a form cannot necessarily establish valid consent if meaningful information was never provided.
Consent Must Relate to the Proposed Procedure
Consent for one procedure does not ordinarily authorise a substantially different treatment.
A patient who agrees to a diagnostic procedure cannot automatically be treated as having consented to major irreversible surgery.
Specific consent becomes particularly important where the additional intervention has serious or permanent consequences.
Adequate Information Must Be Provided
The Court recognised the need to provide sufficient information for the patient to make a balanced decision about treatment.
This includes information regarding the nature and purpose of treatment, its substantial risks and other matters reasonably relevant to the decision.
The judgment therefore balances medical judgment with patient autonomy.
Is a Signed Consent Form Enough?
No. A signed consent form is important evidence, but it is not necessarily conclusive proof of informed consent.
The substance of the consent process remains important.
A standard hospital form may contain broad wording stating that the patient agrees to all procedures considered necessary. Such wording does not automatically authorise every substantially different intervention.
In a dispute, a court or consumer commission may examine:
- whether the proposed procedure was properly identified;
- whether significant risks were discussed;
- whether reasonable alternatives were explained where relevant;
- whether the patient understood the nature of the treatment;
- whether sufficient opportunity was available to make the decision; and
- whether the consent was obtained voluntarily.
Written documentation is therefore important because it provides evidence of the consent process, but documentation should support meaningful communication rather than replace it.
Can Consent for One Procedure Cover Another Procedure?
As a general rule, consent for one procedure does not give unrestricted permission to perform another substantially different procedure.
For example, consent for diagnostic laparoscopy cannot ordinarily be treated as consent for removal of an organ.
Where another condition is discovered during an operation, the doctor may need to complete the authorised procedure and obtain fresh consent before carrying out an additional major intervention.
The position may be different where an unforeseen emergency requires immediate treatment.
This distinction was central to Samira Kohli, where the Supreme Court emphasised that additional surgery cannot normally be justified merely because the doctor considers it beneficial.
What Happens in a Medical Emergency?
An emergency can create an exception to the ordinary rule requiring specific prior consent.
A patient may become unconscious, suffer a sudden complication or already be under anaesthesia when an unexpected life-threatening condition develops.
If delaying treatment to obtain consent would create an immediate threat to life or serious health consequences, the doctor may be justified in providing necessary treatment.
However, emergency necessity should be interpreted carefully.
There is an important distinction between:
- Urgently necessary treatment, where delay could endanger life or health; and
- Convenient or beneficial additional treatment, which could safely be postponed until proper consent is obtained.
The second category cannot ordinarily be justified merely because the patient is already in the operating theatre.
What Is the Doctor’s Duty of Care?
A doctor-patient relationship creates a professional duty of care requiring the doctor to exercise the level of skill and care reasonably expected from a competent practitioner in the relevant field.
This duty applies to different stages of medical treatment, including diagnosis, selection of treatment, performance of procedures, follow-up care and, where required, communication concerning the treatment.
The general law of negligence requires the existence of a legal duty, breach of that duty, causation and resulting damage.
In medical cases, the required standard is assessed in light of professional knowledge and accepted medical practice.
A doctor is therefore not liable merely because treatment was unsuccessful. Liability depends on whether the conduct fell below the legally acceptable standard.
How Is Failure to Inform Different from Negligent Treatment?
Negligent treatment concerns the manner in which medical care was provided.
Failure to disclose risk concerns whether the patient received adequate information before consenting to that care.
The distinction can be illustrated simply.
If a surgeon performs an operation carelessly and causes avoidable injury, the allegation concerns negligent treatment.
If the surgeon performs the operation competently but fails to disclose an important recognised risk beforehand, the allegation may concern inadequate informed consent.
Both issues may arise together, but they require separate examination.
The Supreme Court’s decision in Jacob Mathew v. State of Punjab is particularly important in understanding the standard applied to professional medical negligence. The Court explained that a medical professional is expected to possess and exercise reasonable skill and competence. A mere error of judgment or unsuccessful outcome does not automatically constitute negligence.
Thus, the law does not impose liability merely because another doctor might have adopted a different course of treatment.
Does an Adverse Medical Outcome Prove Negligence?
No. An adverse result or medical complication does not by itself establish negligence.
Medical treatment involves inherent uncertainty. Even properly performed procedures may result in recognised complications.
The question is whether the doctor exercised reasonable skill and care in the circumstances.
This distinction is particularly important in risk-disclosure cases.
If a recognised complication occurs after being appropriately disclosed and the treatment itself was carried out competently, the occurrence of that complication may not establish negligence.
If the same serious risk was never disclosed, however, a separate question concerning the adequacy of consent may arise.
Therefore, the occurrence of harm and the failure to warn about the possibility of harm are legally distinct issues.
When Can Failure to Disclose Risks Lead to Liability?
Failure to disclose a medical risk does not automatically create liability in every case.
Several factors are usually relevant.
The Risk Was Significant
The undisclosed risk should ordinarily be sufficiently substantial or serious to justify disclosure.
A very remote and insignificant possibility may not attract the same legal consequences as a recognised risk of permanent disability or major bodily harm.
Adequate Information Was Not Provided
There must be a meaningful deficiency in the communication provided before consent.
A general consent form may not cure the absence of information regarding the actual procedure and its significant consequences.
Proper Consent Could Have Been Obtained
The circumstances surrounding treatment matter.
Where surgery was planned in advance, there is ordinarily greater opportunity for discussion and consent.
A genuine emergency may justify a different approach.
The Missing Information Was Relevant to the Decision
The undisclosed risk should have some real significance to the decision whether to undergo the procedure.
The existence of reasonable alternatives can make such information particularly important.
Harm Resulted
Where compensation is sought for negligence, the relationship between breach and resulting harm will generally remain important.
These principles are part of the broader framework governing medical negligence and consumer rights in healthcare.
Who Is Responsible for Obtaining Informed Consent?
The doctor proposing or performing the procedure has an important responsibility to ensure that valid consent is obtained.
Hospitals also have an important role in maintaining proper consent systems, documentation and patient communication.
The need for clear consent becomes particularly important in cases involving:
- major surgery;
- irreversible procedures;
- general anaesthesia;
- invasive diagnostic procedures;
- sterilisation or reproductive procedures;
- treatment carrying significant risk of disability;
- experimental or unusual treatment; and
- elective procedures where different treatment options are available.
The seriousness of the medical intervention generally increases the importance of proper communication and documentation.
Can Failure to Obtain Informed Consent Amount to Deficiency in Service?
Failure to obtain legally adequate consent may also become relevant as a deficiency in service where consumer law applies to the medical service concerned.
The Consumer Protection Act provides remedies where services suffer from legally recognised shortcomings or deficiencies.
Medical services have long been considered within consumer protection jurisprudence in India in appropriate circumstances.
The landmark decision in Indian Medical Association v. V.P. Shantha clarified that medical services rendered for consideration can fall within consumer protection law, subject to recognised exceptions such as services rendered entirely free of charge.
Therefore, a patient alleging improper consent may, depending on the circumstances, raise the issue before the appropriate consumer commission as part of a medical-service dispute.
However, dissatisfaction with treatment is not sufficient by itself. The alleged deficiency and its consequences must still be established.
What Evidence Is Important in an Informed Consent Case?
Evidence is particularly important in disputes concerning informed consent because discussions between doctors and patients may later be contested.
Consent Forms
Consent forms may show which procedure was authorised and what risks were recorded.
The wording of the form and the circumstances in which it was signed can both be relevant.
Medical Records
Case sheets, counselling notes, treatment records and hospital documentation may help establish whether the nature of the procedure, risks and alternatives were discussed.
Timing of Consent
The time at which consent was obtained can also be relevant.
Consent obtained sufficiently before a planned procedure may provide greater opportunity for informed decision-making than a hurried signature immediately before surgery.
Expert Medical Evidence
Expert evidence may assist the adjudicating authority in determining whether the undisclosed risk was recognised, significant and normally expected to be discussed in the circumstances.
Emergency Records
Where treatment without fresh consent is justified as an emergency, medical records showing the urgency of the patient’s condition may become crucial.
Does Res Ipsa Loquitur Apply to Lack of Informed Consent?
The doctrine of res ipsa loquitur is relevant to some medical negligence cases, but it should not be confused with the doctrine of informed consent.
Res ipsa loquitur means “the thing speaks for itself”. It permits an inference of negligence in certain situations where the occurrence is of a kind that ordinarily would not happen without negligence and the relevant circumstances were under the defendant’s control.
For example, leaving a surgical object inside a patient’s body may raise such an inference.
A failure-to-inform case is different. The central issue is normally whether sufficient information was communicated before treatment.
Therefore, lack of informed consent is generally proved through consent forms, medical records, surrounding circumstances and evidence regarding what information was or was not provided rather than merely through res ipsa loquitur.
Why Is Informed Consent Important in Medical Law?
Informed consent protects patient autonomy and bodily integrity.
Medical expertise enables doctors to diagnose conditions and recommend appropriate treatment, but the decision whether to undergo a major medical intervention ordinarily remains with the competent patient.
The principle therefore reflects an important distinction between professional advice and personal choice.
It also promotes transparency in medical treatment.
When significant risks are properly explained, patients are better able to understand possible outcomes and compare different treatment options.
At the same time, informed consent law does not impose unrealistic obligations on doctors.
Medical practitioners are not required to predict every possible complication, guarantee successful treatment or describe every remote theoretical risk.
The legal requirement is one of reasonable and adequate disclosure in the circumstances.
Conclusion
Failure to inform a patient about risks can amount to medical negligence in India, particularly where the undisclosed risk was substantial or significant and the absence of information affected the validity of the patient’s consent.
The law does not treat a signed consent form as an automatic answer to every consent dispute. Valid consent should ordinarily be voluntary, given by a competent patient and based on adequate information regarding the treatment.
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