Lice FAQ

Head lice are blood-sucking insects whose only home is the human scalp. They depend on our warmth and blood to survive. When removed from our scalp, they quickly dehydrate and die. Off the scalp, head lice will weaken and die within 24-36 hours. Lice lay their eggs very close to the scalp.

Most of newly laid eggs are found 1-3 millimeters from the scalp, attached to the hair shaft. The eggs (nits) can be hard to remove because they are so close to the scalp and they are very small and can be translucent. Seven to twelve days after the eggs are laid, they will hatch, The louse will mature, lay more eggs and die within 3 weeks. The total life cycle from egg to death is around 30 days. Although lice move (scurry) quickly, they do not fly or hop. They cling to the hair shaft with six claws that conform (or mold around) the hair shaft. Lice do not drown in water. When exposed to water, they have the ability to go into a dormant state that can be maintained for as long as 4 hours.

Lice do not carry disease. They are considered to be harmless but a nuisance. When someone has head lice, they may experience intense itching. This can be very uncomfortable for the person experiencing it. It is possible to scratch the scalp to the point of open sores which can become infected. If this were to occur, antibiotics may be prescribed to fight the infection in the open sores.

Head lice is a common occurrence in school-aged children. Research supports that this condition is more common in younger children because of their play habits. Most of the time, head lice is transferred from one person to another by direct contact. Although there has been some discussion that head lice can be transferred from the sharing of combs/brushes, hats and head phones/ear muffs, research does not really support this. Indirect contact by the before mentioned objects is much lower than direct contact.

The Muscatine Community School District does not have a “No Nit Policy”. This means that children with nits (eggs) are allowed to attend classes. The school nurse intermittently screens each classroom during the school year. Students who are found to have lice are managed on an individual basis. Students may be sent home for prompt and thorough treatment. The school nurse will remain in contact with the family during the treatment process until it is resolved. Students who continue to have problems resolving this condition may have their case reviewed with the principal and school social worker. Students are not excluded from school while they are being treated for lice.

Preschool Information: If your child is found to have head lice, and attends one of the school-based preschool programs, your child may be sent home for prompt treatment. This is due to the age of children and the high risk of transmission. Upon returning to class, your child will be checked for thorough treatment.

Currently, the MCSD employs seven nurses to provide the health care/education to all the students within the district. This means that the school nurse may need to travel to different buildings during the week to cover all the schools in the district. The school nurse does perform classroom screenings intermittently during the school year. However, classrooms may not be checked every time a case is reported. Please keep in mind that the Nurse will only be able to spend several minutes on each student during a classroom check. A parent screening their own child at home can provide a more thorough screening than what is done at school.

When there are several cases of head lice in one classroom, a note will be sent home with every student in the classroom informing the parents of the situation. Please contact your child’s elementary school to find out how many active cases need to be identified before a classroom note is sent home. The note will also ask the parent to inspect their child’s head thoroughly for the presence of head lice. Due to confidentiality, the school nurse can not inform parents about specific students who have been diagnosed with head lice.

• Visually inspect your child’s head under good lighting.
• Part you child’s hair into sections and inspect each section, or comb through each section with a comb that has a very small space between the teeth.
• Lice can be translucent or grey-brown in color, and will move away from the light.
• The lice eggs, called nits, are grey in color, about the size of a poppy seed and stick to the hair shaft. Nits can be found anywhere, but common places include around the ears, and the nape of the neck.
• Check all of the members of your family.

Head lice are found most commonly in young school-aged children who are likely to have close physical contact with their playmates. Most studies have indicated that between the ages of 6-11 years, children are more at risk for getting head lice. It is felt that the play habits of children 6-11 years put them at risk. Hair length doesn’t seem to be a factor, although lice may easier to detect in longer hair than short. In addition, the child’s immune response or use of antibiotics may play a role by killing off the symbiotic microflora in the lice that they need for survival.

If your child’s hair is long, pulling it back in a bun or pony tail may be helpful. In addition, the use of hair gel to keep the hair close to the scalp may be beneficial. Perform head lice screenings weekly, using good lighting, and allowing 10-15 minutes of uninterrupted time.

Teach your child not to share hats or hair jewelry. Although research states that this would be a remote way to transfer lice, it may be something to consider.

Please contact your child’s school nurse for treatment options and strategies.

Please contact your child’s school nurse for more information on this topic.