Research: Breast augmentation by hormone therapy often disappointing

Posted on January 12, 2018 by chief content officer

Trans women who follow hormone therapy may develop smaller breasts than they expect. This is shown by a European study in which 229 transgender people were followed during their transition.

The researchers followed them for a year after starting hormone therapy. All were patients from clinics in the Netherlands, Belgium and Italy. They were treated with both anti-androgens (reduce male characteristics) and estrogens (stimulate female characteristics).

Dr. Christel de Blok, one of the authors of the study, told Reuters news agency that the expectations of trans women are often high, as far as breast development is concerned. But the results are disappointing for many.

A cup at less than 10 percent

After a year, only 21 of the 229 trans women showed that a breast size increase with an A-cup BH size. This is less than 10 percent of the participants.

Approximately half of the trans women studied developed a cup that was smaller than AAA after one year. Approximately 26 percent were on a AAA cup and 14 percent on AA.

Breast development was strongest during the first six months of therapy. The size of the breasts they had when therapy started, did not influence the further development. The question of whether the women increased in weight during the transition or lost kilos did not play a role.

Patients who were obese turned out to have the largest breasts afterwards, but the growth in this group was no different from trans women who were not overweight. The type of estrogens or the hormone level in the blood also had no influence.

According to the authors of the study, it was not possible to measure the manner of breathing of the participants. Breathing can affect breast size.

Breast augmentation by surgery

There are two ways for trans women to develop breasts. Hormone therapy is the first, the second is surgery (also possible at 2pass Clinic). The advantage of a surgical procedure is that the outcome can be determined in part. Another benefit is that an operation gives almost immediate results.

Surgical breast augmentation can be done by implants or by transplanting a patient’s own fat tissue. The latter is not an option for every trans woman. Surgery is never without risks. Proper consultation with the surgeon is therefore strongly advised.

Click here to learn more about MtF breast augmentation

Recent Comments
  • Sarah

    Posted: February 14, 2018

    Hi! Thank you for posting this article. Since I transitioned and began hormone replacement therapy 4 years ago now, breast growth would be the one area where I was left hoping for more in terms of results. This year my partner and I took the steps so that we could have a second child and I was very much hoping to also share in the breast feeding of our new little one. Have you by chance you have heard of any studies done involving transwoman and induced lactation in terms of breast growth and function? 2 mg of estrogen a day certainly hasn't done that trick that way. All the best, Sarah

  • Leonie

    Posted: February 3, 2018

    Hi! Thank you for this interesting article! Two points: 1) How can bathing affect breast size? 2) Could you please post a link to the original study results? Thank you! Leonie

    • Chief Content Officer

      Posted: February 5, 2018

      Hi Leonie, thanks for your comments. Your questions: 1) The authors of the study say breathing (not bathing) can affect breast size. 2) The study can be found here: Hope this helps.

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