Ringworm is a fungal skin infection.

The University of Maryland Medical Center says these are common signs of ringworm:

You may sacrifice comfort for fashionable shoes, but you could be damaging your feet.

The American Academy of Orthopaedic Surgeons says the following problems can result from wearing shoes that are too snug:

As babies crawl and toddlers toddle around the house, the stairs become a dangerous hazard.

The Nemours Foundation suggests how to prevent accidents involving stairs:

Polycystic ovary syndrome (PCOS) is a health condition affecting women that's believed caused by a hormonal imbalance. It's characterized by numerous small cysts that develop in the ovaries, and by missed or irregular menstrual periods.

PCOS can affect a woman's ability to have children, the womenshealth.gov Web site says. While symptoms vary from woman to woman, here's a list of other potential problems that PCOS may cause:

By the time they reach age 5, nearly all children will have had a rotavirus infection. If severe enough, the infection can lead to severe diarrhea and dehydration.

The Nemours Foundation suggests ways to treat rotavirus infection at home: