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Does Wegovy cause hair loss?

Bottom line

Yes. Hair loss is listed among the common adverse reactions on Wegovy's own FDA label, published 2026-06-30. It does not track the dose schedule, so it does not arrive with each increase and does not settle between them.

No clinician has reviewed this page. Every clinical statement on it is drawn from the FDA label or the trial cited beside it, and every price carries the date it was verified — but that is sourcing, not medical review, and the two are not the same thing. What we do and do not check · Who checked the price

Last updated 2026-06-30 — the FDA label this page quotes. Read and dated by Alex Seot.

Does Wegovy cause hair loss?

Yes, and it is on the label rather than only in reports: hair loss appears among the common adverse reactions in Wegovy's FDA prescribing information, published 2026-06-30. Listed means it was seen often enough in the trials to be printed, not that everyone gets it. Rapid weight loss pushes hair follicles into their resting phase at the same time, and they shed together a few months later. It is called telogen effluvium and it is a response to the speed of the loss rather than to the molecule — the same thing happens after surgery, illness or childbirth. It does not track the dose schedule, so it does not arrive with each increase and does not settle between them. What helps, in the order worth trying: time. The shed is self-limiting and follicles are not damaged; regrowth follows; enough protein and enough iron, both of which fall easily on a much smaller intake; slowing the rate of loss if it can be slowed, which is the only lever that acts on the cause. It stops being ordinary at a specific line: patchy loss rather than a general thinning, or loss with a rash or scalp pain. That is a different problem and needs a look.

Why Wegovy does this

Rapid weight loss pushes hair follicles into their resting phase at the same time, and they shed together a few months later. It is called telogen effluvium and it is a response to the speed of the loss rather than to the molecule — the same thing happens after surgery, illness or childbirth.

What actually helps

  1. 1Time. The shed is self-limiting and follicles are not damaged; regrowth follows.
  2. 2Enough protein and enough iron, both of which fall easily on a much smaller intake.
  3. 3Slowing the rate of loss if it can be slowed, which is the only lever that acts on the cause.

Nausea, diarrhoea, vomiting and constipation are the reason most people stop. They are worst in the first days after each dose increase and usually settle; a schedule held longer at one step is the standard answer, and it is a conversation with the prescriber rather than a reason to quit unannounced.

When to stop reading and call someone

Patchy loss rather than a general thinning, or loss with a rash or scalp pain. That is a different problem and needs a look.

Separately, Wegovy carries a boxed warning. In rodents this molecule caused thyroid C-cell tumours at human-relevant doses. Whether it does so in people is unknown, and the label carries that as a boxed warning. It is contraindicated outright with a personal or family history of medullary thyroid carcinoma or MEN 2.

The other 5 common reactions on Wegovy's label

If you are thinking of switching

Hair loss is on the label of most drugs in this class, so a switch is not a reliable way out of it. What a switch does change is what you pay, and Wegovy is $349 a month at the maintenance dose here.

Every alternative to Wegovy, with each one's verified price and the date it was read →

All Wegovy side effects →Wegovy price and terms →Wegovy dose schedule →How long Wegovy takes to work →

Everything on Wegovy

Wegovy and hair loss, answered

Does Wegovy cause hair loss?
Yes — hair loss is listed among the common adverse reactions on Wegovy's FDA prescribing information, published 2026-06-30. Listed means it was seen often enough in the trials to be printed, not that it happens to everyone.
How long does Wegovy hair loss last?
It does not track the dose schedule, so it does not arrive with each increase and does not settle between them.
What helps with hair loss on Wegovy?
Time. The shed is self-limiting and follicles are not damaged; regrowth follows. Enough protein and enough iron, both of which fall easily on a much smaller intake. Slowing the rate of loss if it can be slowed, which is the only lever that acts on the cause.
When is hair loss on Wegovy serious?
Patchy loss rather than a general thinning, or loss with a rash or scalp pain. That is a different problem and needs a look.
Would switching drugs help?
Possibly, and possibly not — hair loss is listed on the labels of most drugs in this class, so a switch is not a way out of it by default. What a switch does change is the price: every verified route to each molecule is priced on this site with the date each figure was read.

Everything above is read from FDA prescribing information for WEGOVY, published 2026-06-30. Information only, not medical advice — a symptom that worries you is a call to your prescriber, not a search result.