Changes awaiting your hair during pregnancy
Among the changes that await your hair during pregnancy are thickening, thinning and shedding. Hormonal changes can affect your hair, making it thicker or thinner. In this article, we will provide information about the potential changes expected in your hair and hair care while pregnant, as well as whether hair dyeing is harmful while pregnant.
Changes awaiting your hair during pregnancy
Hair thickening during pregnancy
Your hair has a natural life cycle. Each strand of hair grows, then after 2 or 3 months of resting, it is pushed out by a new hair growing in that follicle (the tubular sheath that surrounds the hair under the skin). During pregnancy, this cycle changes.
Many women at about the 15th week of pregnancy He feels his hair thicken. This is not because each strand of hair thickens, but because the hair stays longer in the growth phase of its cycle, that is, less hair is lost than usual. This is due to the increase in the hormone estrogen.
Hair thinning during pregnancy
Some women experience more hair loss during pregnancy. Decreased estrogen levels can cause your hair to fall out for the following reasons.
- Stopping the use of oral contraceptive pills (birth control pills)
- Having an abortion, miscarriage or stillbirth
- Hormonal imbalance during pregnancy
It is also common for women to experience hair loss after pregnancy when estrogen levels return to normal. This causes the additional hair in the growth phase to go into the resting phase, which then falls out more than usual until about 3-4 months after your child is born.
This hair loss is usually nothing to worry about – your hair growth will return to normal by the time your baby is around 12 months old. Consult your doctor if you think your hair loss is excessive or if your hair growth has not returned to normal for up to 12 months.
What causes hair loss during pregnancy?
Hair loss during pregnancy is thought to be related to hormonal changes that occur.
While pregnant, the level of the hormone estrogen increases, as a result of which the growth cycle of the hair is prolonged. Thus, less hair loss is seen during pregnancy. After the baby is born, the level of estrogen hormone decreases and the growth cycle of the hair normalizes. Therefore, there may be more hair loss after the termination of pregnancy.
It is known that some women experience more hair loss during pregnancy. This is a condition that can be seen while you are not pregnant and can usually be due to stress, malnutrition, or some health problems. For example, anemia (iron deficiency) or thyroid problems are among the factors that increase hair loss. Some medications are also known to cause hair loss. Some medications used while pregnant can also cause hair loss.
Hair loss during pregnancy is a normal condition. Expectant mothers who have hair loss problems during pregnancy eliminate this problem after birth. However, if there is a lot of hair loss while pregnant, you should consult your doctor.
Hair coloring during pregnancy

Is hair dyeing harmful during pregnancy? Dyeing hair during pregnancy is not thought to harm your developing baby. That’s because your hair doesn’t absorb chemicals that are harmful enough to affect you or your baby. The amount of toxic chemicals in hair dye is not high.
However, since there isn’t a lot of research on hair dye use and pregnancy, it may be a good idea to delay dyeing your hair until the first trimester (the first 12 weeks of pregnancy) is complete.
Other things you can do to minimize your exposure to hair dye chemicals:
- If you dye your hair yourself, use gloves.
- Make sure you don’t let the hair dye sit longer than necessary before rinsing it off
- Dye your hair in a well-ventilated room
- Then rinse your scalp thoroughly.
- Read the instructions on the hair dye package.
- Do not mix different hair color products.
- Do an allergy test before dyeing your hair.
Be careful if you use other chemical treatments on your hair. For example, some hair straightening treatments contain the chemical formaldehyde. While there is no evidence that it can harm unborn babies, it is known to be carcinogenic and should probably be avoided.
Talk to your doctor if you’re concerned about whether or not it’s safe to dye hair during pregnancy.
