Redness during pregnancy: what are the causes and what can be done?

Pregnancy brings a host of surprises for women, some good and some not so good. Among the latter, we often find redness, either diffuse or in the form of starburst angiomas. These are a result of an intensification of blood circulation in the body. Although redness can appear at any time during pregnancy, it is more common after the first month. Indeed, blood circulation between the mother and the embryo generally begins from the fourth week of pregnancy. The blood flow then increases in the pregnant woman's body because, in addition to supplying oxygen and nutrients to the mother's various organs, it must now provide the baby with the essential elements for its development.

Many studies have focused on the causes of increased blood flow during pregnancy. It appears that it is primarily due to the increase in circulating oestrogen levels in the body. By binding to nuclear receptors ER-α and ER-β, this steroidal hormone triggers a cascade of reactions leading to an increase in the amount of intracellular cyclic adenosine monophosphate (cAMP). This intermediary is involved in the regulation of the synthesis of nitric oxide (NO), a vasodilator. Indeed, NO stimulates the production of cyclic guanosine monophosphate (cGMP), a nucleotide that results in a reduction of smooth muscle tone and an increase in the diameter of blood vessels.

Note : Relaxin, a peptide hormone secreted in the weeks leading up to childbirth, also has a vasodilatory effect and contributes to the appearance of the characteristic redness associated with pregnancy.

It is challenging to prevent the onset of redness or spider angiomas during pregnancy. While it is possible to avoid certain triggers such as heat, spicy foods, and UV rays, managing stress levels can be more complex. The prospect of childbirth and soon becoming a parent can indeed be daunting. Several techniques can help you relax, such as relaxation or gentle yoga. Do not hesitate to share your doubts with your loved ones or ask all your questions during prenatal classes to reassure yourself.

If you are experiencing redness or wish to prevent it, it is also recommended to adopt a good skincare routine during pregnancy. The skin tends to be more sensitive during this period, so we recommend applying a daily moisturising and soothing treatment. This topical application of lipids and hydrophilic substances not only protects the skin from external aggressions but also strengthens the skin barrier, which prevents redness. We advise you to opt for treatments with a minimalist formula, in order to minimise the risk of skin reactions. Moreover, ensure that they do not contain retinoids or essential oils, ingredients that are contraindicated during pregnancy.

Finally, if your redness bothers you on a daily basis, you can conceal it with a green corrector or a concealer. Again, check the composition of the products you wish to use. As for spider angiomas, these small red spots, know that they often naturally disappear in the months following childbirth. However, if this is not the case, your dermatologist can treat them with a laser. Even though some clinics offer these aesthetic treatments to pregnant women, it is strongly recommended to wait until after childbirth. Indeed, while scientific studies seem to indicate a lack of risk to the foetus, laser treatment can lead to permanent hyperpigmentation problems for expectant mothers, who are frequently prone to melasma.

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