Can an LPA Be Overridden by a Doctor?

Written by Anthony Dalton · Reviewed by James Tyrrell · Last reviewed 9 April 2026

In most situations, a doctor cannot override a registered Health and Welfare LPA — they must consult the attorney before making decisions about care or treatment. However, there are specific circumstances where medical professionals can lawfully act against an attorney’s wishes: in genuine emergencies, where an Advance Decision applies, where the Mental Health Act 1983 is invoked, or where a court has intervened. Understanding when is essential.

What a Health and Welfare LPA Actually Gives an Attorney

A Health and Welfare LPA gives the attorney legal authority to make decisions about the donor’s personal care and medical treatment — but only once the donor lacks mental capacity to make those decisions themselves.

That authority includes decisions about where the donor lives, what care they receive, and — if the donor has specifically granted it — whether to consent to or refuse life-sustaining treatment.

What it does not give the attorney is unlimited power. The Mental Capacity Act 2005 sets clear boundaries. Every decision an attorney makes must be in the donor’s best interests, considering their past wishes, feelings, and values.

When Doctors Must Follow the Attorney's Decision

In most situations, medical professionals are legally required to involve and respect the decisions of a registered Health and Welfare attorney. If a doctor proposes a treatment and the attorney objects — and that objection is arguably in the donor’s best interests — the doctor must take that seriously.

• Routine care decisions — Where to place the donor for care, daily medication management, and ongoing treatment choices all fall within the attorney’s authority.
• Consent to treatment — Doctors should seek the attorney’s consent before proceeding with non-urgent procedures.
• Refusing treatment — An attorney can refuse treatment on the donor’s behalf if they believe it is not in the donor’s best interests, provided the LPA grants this power.

When a Doctor Can Act Against an Attorney's Wishes

There are genuine situations where a doctor can lawfully act without — or even against — the attorney’s decision. This is not about ignoring the LPA; it is about the limits the law places on anyone making decisions for someone else.

Can a GP Ignore a Health and Welfare LPA?

The same rules apply in primary care as in hospital settings — a GP cannot simply ignore a registered Health and Welfare LPA. Before prescribing or changing treatment for a patient who lacks capacity, a GP should consult the attorney just as a hospital consultant would.

In practice, GP practices may not always have the LPA on file. It is worth proactively registering a copy of the LPA with the donor’s GP surgery as soon as it is registered — this avoids delays when decisions need to be made. See our guide on what happens after an LPA is registered for further steps.

The Mental Health Act 1983: An Important Exception

There is one significant legal exception that many guides overlook: the Mental Health Act 1983.

Where the Mental Health Act applies — for example, where a person is detained under sections 2 or 3 — clinicians can administer treatment for a mental disorder without the patient’s consent, and without requiring the attorney’s agreement. This statutory power operates separately from the Mental Capacity Act 2005 and can override both a Health and Welfare LPA and an Advance Decision in relation to mental disorder treatment.

This does not affect the attorney’s authority over physical health decisions unrelated to the mental disorder. But if a donor is detained under the Mental Health Act, certain treatment decisions will fall outside the attorney’s control. Families should seek legal advice if this situation arises.

What Happens When a Doctor and Attorney Disagree?

When a genuine dispute arises — for example, an attorney refusing an operation the medical team considers essential — either party can apply to the Court of Protection for a ruling.

The Court of Protection exists precisely for these situations. It can authorise or refuse treatment, overrule an attorney, or even revoke the LPA if the attorney is found to be acting contrary to the donor’s best interests.

In practice, most disputes are resolved through conversation before reaching court. Hospital trusts often involve their own legal teams or patient advocates at an early stage if an attorney’s decision seems questionable.

Real Example: When This Can Go Wrong

Consider David, whose mother Susan has a Health and Welfare LPA naming him as attorney. Susan develops a serious infection and the hospital recommends surgery. David refuses, saying his mother always feared operations.

The medical team believes the surgery is clearly in Susan’s best interests and that refusing it risks her life. They do not simply override David — instead, they involve the hospital’s legal team, attempt mediation, and if needed, apply urgently to the Court of Protection for a decision.

This is the process the law intends. Neither doctors nor attorneys have unchecked power over another person’s life.

Does a Health & Welfare LPA Cover Refusing Treatment?

The Health and Welfare LPA form asks the donor to decide whether to grant the attorney the specific power to consent to or refuse life-sustaining treatment.

If the donor ticks “Yes” to this option, the attorney can refuse life-sustaining treatment on their behalf. If not, that specific power does not exist and doctors are not bound by the attorney’s wishes on that point. This is one of the most significant decisions in the entire LPA process.

Common Questions About Doctors and LPAs

This guide was last reviewed and updated on 9 April 2026. Information is based on current legislation and OPG guidance for England and Wales.

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