According to experts at What to Expect, research has revealed that as many as two-thirds of people experience a heightened sense of smell during pregnancy. Due to this hypersensitivity, some may find that certain scents induce feelings of queasiness, such as fish or particularly pungent perfumes. Nail polishes are among such items with a distinctly strong smell due to their chemical makeup. Is there any risk associated with exposure to these chemicals during pregnancy?

据What to Expect的专家称，研究显示，多达三分之二的人在怀孕期间嗅觉增强。由于这种过敏症，一些人可能会发现某些气味会引起恶心感，如鱼味或特别辛辣的香水。指甲油属于此类物品，由于其化学成分，其气味明显强烈。怀孕期间接触这些化学品是否有任何风险?

Standard liquid nail polish is made up of a polymer — or "repeating chains of molecules" (via Live Science) — that is dissolved in a solvent which then evaporates when applied to the nail to create the glossy film on the nail's surface (via Elsevier SciTech Connect). In order to create a long-lasting effect, both gel and traditional nail polishes contain plasticizers to prevent breakage. The use of certain plasticizers, such as dibutyl phthalate (DBP), has been banned in some countries due to possible links to hormone system disruption, although some of the replacement chemicals now used still pose the same concern.

标准液体指甲油由聚合物或“重复分子链”(通过Live Science)组成，溶解在溶剂中，然后在涂抹到指甲上时蒸发，在指甲表面形成光泽膜。为了产生持久的效果，凝胶和传统指甲油都含有增塑剂，以防止破损。某些国家已禁止使用某些增塑剂，如邻苯二甲酸二丁酯(DBP)，因为它可能与激素系统紊乱有关，尽管目前使用的一些替代化学品仍然引起同样的关注。

Be on the lookout for these chemicals in your nail polish

注意指甲油中的这些化学物质

Because chemical exposure is so minimal while painting one's nails, medical experts do not believe there is a significant risk in painting your nails sporadically during pregnancy (via FirstCry Parenting). However, doctors encourage users to purchase polishes that are devoid of certain chemicals, such as formaldehyde, toluene, and dibutyl phthalate (DBP). This is because these chemicals can have negative health effects on a pregnant person and their baby. For example, toluene, a chemical ingredient used to give nail polish its smooth texture, can irritate the throat and lungs during pregnancy, as well as negatively impact the developing baby's nervous system if inhaled in large amounts.

因为涂指甲时接触的化学物质非常少，医学专家认为在怀孕期间偶尔涂指甲不会有很大的风险。然而，医生鼓励用户购买不含某些化学物质的指甲油，如甲醛、甲苯和邻苯二甲酸二丁酯(DBP)。这是因为这些化学物质会对孕妇及其婴儿的健康产生负面影响。例如，甲苯是一种使指甲油质地光滑的化学成分，在怀孕期间会刺激咽喉和肺部，如果大量吸入，还会对发育中的婴儿的神经系统产生负面影响。

In addition to switching to water-based nail polish products without the above chemicals, those who work in nail polish salons should take extra precautions to keep the area ventilated with fresh air (via What to Expect). If traditional nail polish containing toxic chemicals is being used, the ongoing exposure to formaldehyde may make salon workers susceptible to miscarriage. Positioning oneself by an open door or window can reduce inhalation.

除了改用不含上述化学物质的水性指甲油产品外，在美甲沙龙工作的人还应采取额外的预防措施，使该区域保持新鲜空气的通风。如果使用含有有毒化学物质的传统指甲油，持续暴露在甲醛中可能会使美甲工作人员容易流产。通过打开门窗来减少吸入。