The main hormones responsible for breast growth are estrogen and progesterone. Estrogen stimulates the growth of breast tissue, while progesterone plays a role in the development of milk-producing glands. These hormones fluctuate during puberty, the menstrual cycle, pregnancy, and menopause, impacting changes in breast size and shape.
No, a person's environment does not affect breast growth, although nutrition will have some effect on the size of breasts.
Breast massage does not make a breast grow. Only DNA, hormones, pregnancy, or surgery will change size.
There is no evidence that tattoos affect the growth of breasts. However you should ideally avoid getting breast tattoos if you are pregnant or breast-feeding. There is always a risk of infection or allergic reaction with tattoos that may affect your child when s/he comes into contact with your breasts. You should also be aware that pregnancy usually leads to temporary breast enlargement, which forms stretch marks that may change the appearance of the tattoo. In short - no, tattoos are not known to affect the growth of breasts. But due to health reasons you shouldn't get one if you're pregnant and/or breastfeeding. Also it's ideal to avoid breast tattoos if you plan on getting pregnant due to stretch marks.
human placental lactogen
Well if that is your only symptom of pregnancy then you are probably just experiencing PMS. It could also be breast growth. If it persists I would just take a pregnancy test.
Yes of course. Everything you take or eat the baby get and it will affect the growth.
IUD's are around 99+% effective against unintended pregnancies, thus the risk of pregnancy is increadibly low. Breast tenderness does not equate to pregnancy, it could be a reaction to hormones in the IUD or breast growth.
There are usually only two reasons for breast growth after puberty: pregnancy or weight gain.
Yes but it's also signs of getting your period.
Pregnancy as is no contraindication to squeeze the breast.
Touching or not touching her breasts will not affect her ability to get pregnant at all.