What’s the best way to dispose of underwear that has been worn for a long time?

It is recommended to replace underwear in time after being worn for a long time. Generally, it should be discarded after 3-6 months of use. Wearing underwear for a long time will cause fiber deformation, reduced breathability, and may also breed bacteria and cause health problems.

As close-fitting clothing, underwear comes into contact with perineal secretions, sweat and excretion residues every day. Even if washed every day, after repeated friction and washing of cotton or chemical fiber materials, the fiber structure will gradually loosen and the moisture absorption and perspiration function will weaken. Underwear that has expired may contain pathogenic microorganisms such as Staphylococcus aureus and Escherichia coli, increasing the risk of urinary tract infections, vaginitis and other diseases. For women, the reduced breathability of old underwear may destroy the acid-base balance of the perineum and induce fungal vaginitis. Men wearing deformed underwear for a long time may affect testicular temperature regulation and be detrimental to healthy sperm storage.

Under special circumstances, it needs to be replaced in advance. If underwear is found to be significantly deformed, lose elasticity, become thin and translucent, or still smell after repeated cleaning, it should be eliminated even if it has not reached the expiration date. If underwear used during menstruation is stained with blood and it is difficult to clean thoroughly, it is recommended to store it separately and shorten the replacement cycle. Postoperative patients, diabetics or people with low immunity can shorten the underwear replacement cycle to 2-3 months. Sports-specific underwear usually has a shorter service life than everyday underwear due to the high frequency of sweat soaking.

Discarded underwear should be cut and discarded separately to avoid secondary circulation. When choosing new underwear, give priority to breathable materials such as pure cotton and modal. Light colors are more conducive to observing abnormal secretions. Daily cleaning requires hot water at 40-60°C and a special disinfectant for underwear. Drying in the sun can help sterilize. It is recommended to prepare 7-10 pairs of underwear for rotation, which not only ensures daily replacement needs, but also extends the service life of a single pair of underwear. Developing the habit of changing clean underwear before going to bed can effectively reduce the probability of perineal infection.