Large employers would be forced to provide flexible hours to women experiencing the menopause under Labour plans to end stigma in the workplace.
Shadow equalities minister Dawn Butler announced the “bold” policy as the party’s conference starts in Brighton.
Other proposals to be discussed include expanding GP training, transport and Labour’s stance on Brexit.
But the opening of the conference was overshadowed by a row over a bid to get rid of Tom Watson’s deputy leader role.
Under Ms Butler’s plans, companies with more than 250 employees would also be required to train managers on the effects of the menopause so they can accommodate the needs of employees.
The MP said: “Together we must end the stigma and ensure that no woman is put at a disadvantage, from menstruation to menopause.”