How dirty are socks? Can they be washed with underwear?

Certain special groups
It is recommended that the following special groups wash their underwear and socks separately, because their skin and immune system may not be able to resist some germs:
First, patients with weakened immunity after chemotherapy.
Second, patients with immune-mediated skin diseases such as psoriasis.
Third, patients with severe fungal infections such as athlete's foot and onychomycosis.
Fourth, infants and young children with weakened immune systems.
On the next page, we've listed 5 tips for washing clothes. Wash clothes properly, and you'll stay healthy!