According to the latest research, chemicals found in soap and plastic can reduce sperm quality. Hormone-disrupting chemicals, known as parabens, are significantly associated with an increased number of abnormally sized and shaped sperm, which has previously been linked to infertility.
Parabens, which are also found in certain foods, drugs and cosmetics can also cause DNA damage in sperm, which may hinder a woman's ability to conceive. Exposure to such chemicals also reduces sperms' mobility, making it more difficult for ejaculate to reach an egg. Parabens cause slow-moving sperm of an abnormal size
The researchers analysed the urine samples of men who attended a fertility clinic. The samples' paraben concentrations were assessed. The participants were also interviewed and provided semen, saliva and blood samples.
Results reveal the presence of parabens in urine are significantly associated with an increase number of sperm of an abnormal size and shape, which has previously been linked to infertility.
Parabens are also linked to DNA damage in sperm.
A particular type of the chemical, known as butyl paraben, was found to be particularly associated with reducing sperm quality. Parabens are widely-used preservatives in cosmetic products, including soaps, moisturisers and make-up. They are also found in certain drugs, pesticides, plastics, detergents, foods, toys and flame retardants.
The most common forms of the chemical are methylparaben, propylparaben and butylparaben. Parabens are sometimes combined to increase their effectiveness. Parabens may have developmental, reproductive, neurological and immune-system side effects.
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