Sanitary pads take on both moisture and heat during menstruation. Therefore, wearing them for an extended period of time can lead to a number of issues.
Menstrual Hygiene, Water, Sanitation, and Environmentally Related Hygiene
I wore my pad for a full 14 hours, will I be okay? I went to school and changed it around lunch and I got home and slept for another 11 hours.
6 Health Risks of Poor Menstrual Hygiene - Nua
Can wearing a sanitary pad for 24 hours cause infection or something? - Quora
How long can you wear a pad overnight? - Quora
How long can you wear a pad overnight? - Quora
How to Change a Heavy Flow Menstrual Pad (with Pictures) - wikiHow Health
Be honest: how do you all feel about wearing pads all day every day to avoid your period coming unexpectedly? : r/badwomensanatomy
19 Things You'll Only Understand If You Wear Pads Instead Of Tampons
19 Things You'll Only Understand If You Wear Pads Instead Of Tampons
Period hygiene: Side effects of not changing sanitary pad every 4 hours
6 Health Risks of Poor Menstrual Hygiene - Nua