6 doctors weighed in:
How long does it take for breasts to swell when on birth control pills?
6 doctors weighed in

3 doctors agree
In brief: Within a few days
Your breasts will respond to the estrogen-like component of your birth control pills within 24 hours to a few days.
You may experience tenderness, swelling, or even some clear nipple discharge -- all of this is normal.

In brief: Within a few days
Your breasts will respond to the estrogen-like component of your birth control pills within 24 hours to a few days.
You may experience tenderness, swelling, or even some clear nipple discharge -- all of this is normal.
Dr. Crystal Twynham
Dr. Crystal Twynham
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Dr. Regina Hampton
Breast Surgery
In brief: May not happen
Not everyone gets breast swelling with birth control use.
This can be a side effect of birth control pills but not all side effects are experienced by individuals who take the medication.

In brief: May not happen
Not everyone gets breast swelling with birth control use.
This can be a side effect of birth control pills but not all side effects are experienced by individuals who take the medication.
Dr. Regina Hampton
Dr. Regina Hampton
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In brief: Maybe never
Sometimes they don't swell as the dose of hormones may be too low to affect them- or they could in a couple of days.

In brief: Maybe never
Sometimes they don't swell as the dose of hormones may be too low to affect them- or they could in a couple of days.
Dr. Terry Simpson
Dr. Terry Simpson
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