Lice are from parasitic animals, small in size. They usually parasitize human or animal bodies and suck blood to survive. In humans, they spread by contact, through clothing. When sucking blood they cause dermatitis (swelling, redness, itching) called lice. So how long does it take for nits to hatch, Jamm beauty will answer with you

Overview of Head Lice (Head Lice)

Head lice are a very small form of the parasite, with grey or brown color, about the same size as the seeds in dragon fruit we often use. They lay eggs and after about 7-10 days of hatching eggs, grow rapidly and constantly increase in number if no preventive measures, destroy them.

Head lice live in hair, suck blood to grow and lay eggs. Nits are attached to hair by an adhesive secreted by the female lice. Nits are usually attached to the hair shaft about 0.5 – 1cm from the scalp.

The life of lice is about two months. During that time, female lice produce a lot of eggs but only about 50% of the eggs are live, the rest are small eggs.

How long does it take for nits to hatch

Their main mode of transportation is to swing on the ‘forest of hair’ like a tiny Tarzan.

Head lice live only on the human body and depend entirely on humans to survive. The life cycle of lice goes through three stages: adult lice, eggs and growing lice (also called cocoons).

Adult lice are about 5 millimeters long. Within 30 days, female lice can lay 130 eggs. [1] Adult female lice only need to mate with male lice once during the breeding period because they can store sperm in a special chamber on the body. In fact, throughout the life cycle, lice live on the hair, not on the scalp. They crawl down to the scalp about three times a day to suck blood and each ‘feed’ lasts about 15 minutes.

That’s why it’s hard to find lice on the scalp and it’s hard to find on the hair because the lice move very fast, at speeds up to 23 centimeters per minute. [2]

Head lice can live up to about three days if blood is not drained. So, if you can leave home for three days on a long weekend, you can make sure that your home will no longer lice except for some of the lice that fall around the house and that the lice are still living on your head. So How long does it take for nits to hatch? Keep reading this article to find out the answer.

Common lice diseases in humans include:

  • Head lice disease in human scalp.
  • Lice live on skin, eyelashes, eyebrows, chest hair, pubic hair.
  • Lice live on clothes and bedding that move around and suck blood.
  • Causes of Head lice (head lice)

Head lice spread by contact. People get lice from contact with clothing that contains lice or nits. The main ways of transmission of lice are:

How long does it take for nits to hatch

Children are the ones who can easily get lice from their friends at school (Source: Internet)

  • Direct contact between people. This is most often seen in children or family members due to common activities.
  • Due to sharing items such as clothing, hats, combs, face towels with people with lice.
  • Due to contact with lice in places like bed mats, wardrobes …
  • Pubic lice are transmitted through sexual contact

These are the main causes of lice. When there are signs of lice, patients need to check again the infectious factors to prevent and treat to avoid affecting the activities.

Symptoms of Head lice (lice)

Possible signs of head lice are as follows:

  • Severe pain, itching with redness in the areas where there are lice on the body such as the skin, scalp …
  • There is a feeling that parasites move on skin, hair,…
  • Detect lice or nits in areas such as scalp, hair, and clothing of an infected person. Adult lice are about the size of a sesame seed and can be seen with the naked eye.

Head lice are seen in people of all ages and ages. People at risk of lice can include:

  • Students at school or boarding students are at risk of getting lice caused by contact and activities with many people.
  • Those who rarely bathe or cannot bathe, those who are less hygienic or unsanitary.
  • Hygiene for places containing lice is not guaranteed such as less washing clothes, not cleaning the wardrobe, blankets, beds, rooms.
  • Having unprotected sex often.

How long does it take for nits to hatch

Head lice are small blood-sucking insects that live on the skin of mammals and birds. 3 types of lice are adapted to living on humans: lice (Pediculus humanus capitis), lice (Pediculus humanus) and crab lice or inguinal lice (Pthius pubis).

The life cycle consists of 3 stages: egg, nymph, and maturity. The process of development from egg to adult takes about 2 weeks. The egg is white, adhered to feathers, hair, in the case of lice, in the clothes braces. Nymphs resemble adults but are much smaller. Head lice and adult lice can be up to 4.5mm long and live off of blood. Blood burning can happen several times a day. Head lice can only grow in a warm environment, attached to human skin and die within a few days if it is not in contact with the human body. They are often spread through contacts such as cramped sleeping quarters, dormitories, barracks, and boarding houses.

Measures to diagnose head lice (head lice) and how to prevent lice (lice)

Head lice can now be prevented by practicing personal hygiene, utensils and other sources of disease. Once you have lice, check and avoid infecting family members, keep children away from crowded places, and live together until the illness is gone. For pregnant women, the use of the drug must be directed by a doctor. Note when using drugs, shampoos to treat lice and when strange signs appear, you need to see a doctor for timely treatment.

Diagnosis of head lice combines the examination of clinical signs, testing of hygiene habits, living habits, and performance of diagnostic tests.

Clinical examination identifies symptoms, checks the properties of redness to avoid confusion with other diseases. Besides, the doctor will ask about the living habits, hygiene habits of the patient to guide lice.

Implement diagnostic techniques such as finding lice eggs, [3] finding adults to make a diagnosis. When the disease is identified, appropriate treatment will be taken.

Measures to treat Head lice (head lice)

Currently, there are many kinds of medicine used to treat lice. Depending on the situation and situation of the patient, the treating doctor will find the appropriate and appropriate drugs to treat the patient’s results.

How long does it take for nits to hatch

Patients themselves can also treat themselves by catching lice eggs and nits with special combs.

Patients should carefully examine the places where there is a risk of head lice on the body to make sure the disease is treated completely.

Besides, patients should also check for places at risk of lice, such as clothes, wardrobes, beds, mats, cushions. Patients should ensure that these places are hygienic and clean, there is no source of disease spread.

How long does it take for nits to hatch

How long does it take for nits to hatch (Source: Internet)

When using the medication, patients should pay attention to the dosage and instructions for use. Need to use the right dosage and instructions, if appearing side effects need to see a specialist and change other drugs appropriately.


1Kruszelnicki, K. Dr. Karl’s little book of Trivia 101 (1st ed., p. 1). Google book.
2Head lice infestations: A clinical update. (2004). Retrieved 20 April 2020, from
3CDC – Lice – Head Lice – Treatment. (2020). Retrieved 20 April 2020, from