Does Hair Dyeing Before or After Menstruation Affect Health? - Obstetrics and Gynecology

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Does dyeing or perming hair before or after menstruation affect health?


Hello! I would like to ask, I once heard that a friend was told by her doctor that it was fine to dye her hair during pregnancy.
So, if I want to perm (or dye) my hair around my menstrual period, will it also not affect my health?

Zhang, 20~29 year old female. Ask Date: 2002/01/22

Dr. Xu Junzheng reply Obstetrics and Gynecology


Dyeing or perming hair during the period before and after menstruation does not affect health.
Thank you!

Reply Date: 2002/01/22

More Info


When it comes to dyeing hair during menstruation, there are several factors to consider, but generally, dyeing hair does not pose significant health risks, regardless of the timing in relation to your menstrual cycle. However, there are some nuances worth discussing.

Firstly, the primary concern with hair dyeing is not directly related to menstruation but rather to the chemicals present in hair dyes. Most commercial hair dyes contain a variety of chemicals, including ammonia, hydrogen peroxide, and various colorants, which can cause allergic reactions or skin irritations in some individuals. If you have a history of skin sensitivities or allergies, it is advisable to perform a patch test before applying the dye to your entire head, regardless of your menstrual cycle.

During menstruation, some women may experience heightened sensitivity or changes in skin condition due to hormonal fluctuations. This could potentially make the scalp more reactive to hair dye. If you notice that your skin is particularly sensitive during your period, it might be wise to wait until after your menstruation to dye your hair. However, this is not a strict rule, and many women dye their hair during their periods without any issues.

Regarding your friend's experience during pregnancy, it is generally advised that pregnant women avoid hair dyes, especially during the first trimester, due to the potential risks associated with chemical exposure. However, many studies have shown that the risk is minimal, and many healthcare providers may say that occasional use of hair dye is unlikely to harm the fetus, especially if the area is well-ventilated and the dye is applied according to safety guidelines.

In summary, dyeing your hair before or after your menstrual period is unlikely to have a significant impact on your health. However, if you have specific concerns about skin sensitivity or allergies, it may be prudent to wait until after your period. Additionally, if you are considering dyeing your hair while pregnant or if you have any underlying health conditions, consulting with a healthcare professional is always a good idea.

Moreover, it is essential to maintain good hair and scalp health, especially if you are frequently dyeing your hair. This includes using quality hair care products, avoiding excessive heat styling, and ensuring that your scalp is healthy and free from irritations or conditions such as seborrheic dermatitis or psoriasis, which can be exacerbated by hair dyeing.

In conclusion, while dyeing hair during menstruation is generally safe, individual reactions can vary. It is always best to listen to your body and consult with a healthcare provider if you have any concerns or pre-existing conditions that may be affected by hair dyeing.

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