A pantyliner is an absorbent piece of material used for feminine hygiene. It is worn in the gusset of a woman's panties. Some uses include: absorbency for daily vaginal discharge, light menstrual flow, tampon and menstrual cup backup, spotting, post-intercourse discharge, and urinary incontinence. Panty liners can also help with girls who are having discharges and about to start their cycle. Pantyliners are related to sanitary napkins in their basic construction—but are usually much thinner and often narrower than pads. As a result, they absorb much less liquid than pads—making them ideal for light discharge and everyday cleanliness. They are generally unsuitable for the menstruation medium to heavy flow, which requires them to be changed more often.