Symptoms may take four to six weeks to develop the first time a person has head lice.

Symptoms
may take four to six weeks to develop the first time a person has head lice.

Telling Friends/Family About Head Lice

Head lice are most often spread by direct head-to-head contact. Head-to-head contact is common among children during play at home or school, slumber parties, sports activities or camp.

It may take four to six weeks to develop the first time a person has head lice. In some first-time cases, head lice symptoms may not develop at all, so if you suspect your child has head lice or your child has been diagnosed with head lice, you should alert friends and family so they can check for signs of infestation.

Those with evidence of an active infestation should contact a healthcare provider to help identify the best head lice treatment option for them.

Nancy Gottesman

Nancy is a health and nutrition journalist and a mom. She is a contributing editor to New Parent magazine and Baby & Toddler magazine, and has written health and parenting articles for a number of publications, including Parenting, O-the Oprah Magazine, Fitness, Glamour, Fit Pregnancy, Baby Talk and Ladies' Home Journal. She was a senior editor at Shape magazine for 11 years before becoming a freelance writer in 2005.