In recent years, there's been plenty of discussion around the term 'feminine hygiene' when used in relation to products such as tampons and sanitary towels.
With so much stigmatisation still surrounding menstruation, for many, the term 'feminine hygiene' only adds to the harmful idea that periods are in some way dirty, unhygienic, or shameful.
Furthermore, the term here is also clearly a gendered one, which many believe is unhelpful for those who don't identify as women but still need to use period products.