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What is Demodex parasite and what effect does it have on skin and hair health?

Study guide

Demodex is an octopus microscope found mostly in the sebaceous glands of the skin and facial hair follicles. No matter how much you cleanse your face, you will not be able to get rid of them. These creatures often come out at night when you are asleep and feed on the dead skin cells of your face and then hide their eggs in the cavities of the skin. Here’s how to put one together for use with this microscopic creature. So join us.

Types of Demodex

Demodex is a type of mite or microscopic (microscopic organisms of the spider and subfamily genus) that exists in two different types, Demodex folliculorum and Demodex brevis. Both types of mites have elongated and translucent bodies that consist of two parts. Their octopuses are located on their upper body. The whole body of the mites is covered with scales and they are attached to your hair follicles using these scales. Mites also have a mouth and can feed on skin cells, oils and hormones in your hair follicles.

1. Demodex folliculorum

Demodex follicle mite is the most common type of Demodex mite. This type of Demodex mite is about 0.3 to 0.4 mm long. Demodex follicor lives inside the hair follicles of human skin and feeds on dead skin cells. This type of mite, unlike the Bruce type, is abundant on the skin of the face. Also, these mites accumulate more around the eyes and have a negative effect on the eyelids and eyelashes.

2. Demodex brevis

The Demodex Brevis mite is slightly smaller than the previous mite and is about 0.15 to 0.2 mm long. Demodex Bruis prefers to live around your neck and chest. It also penetrates deep into the skin’s sebaceous glands and feeds on skin cells.

How Demodex parasites live

Mating of male and female demodex usually occurs within the open mouth of the follicles. When fertilization takes place, the mites place the eggs inside the sebaceous glands under the skin or hair follicles. The larvae hatch after 3 to 4 days and fully mature after 7 days. Most demodexes live for about 2 weeks and break down into hair follicles and sebaceous glands in your skin after death. Demodex can also be transmitted from one host to another.

The negative effect of Demodex on body health

Most of the time, people are unaware of the spots on their skin. Because having a small number of them not only does not cause a problem, but also has a benefit. Demodexes feed on dead skin cells. As long as the presence of these mites is under control, no problem will arise. But when a large number of them penetrate into your skin, your skin becomes severely infected and as a result becomes inflamed.

People between the ages of 20 and 30 are at higher risk for severe Demodex infection. Older people and children under 5 are also prone to severe contamination with Demodex mites.

Other diseases caused by Demodex infection include the following:

1. Acne Rosacea

Studies show that Demodex can cause rosacea. Also, if you have rosacea before, Demodex will make it worse. According to research, Demodex mites are up to 18 times more common on the skin of patients with rosacea.

2. Eyelid (blepharitis)

پلک‌آماسIs a type of inflammation of the eyelid that occurs due to the blockage of sebaceous glands in the eyelid area. In fact, Demodex Mites can block the path of sebaceous glands under the eyelashes. This is why patients over the age of 60 are more likely to develop eyelid inflammation.

Symptoms of eyelid inflammation include the following:

  • eye redness;
  • Tears;
  • Dry eyes;
  • Burning sensation in the eyes;
  • The presence of scales on the eyelashes;
  • The feeling that something has gone into the eyes;
  • Light sensitivity;
  • Brittle eyelashes;
  • Eyelash loss;
  • Temporary blurred vision.

In addition, if you have the following conditions, you may be more at risk for Demodex folliculitis mites than others:

  • Weak immune system;
  • Dermatitis;
  • Skin infections;
  • Alopecia (hair loss);
  • Acne, especially of the inflammatory types;
  • AIDS;
  • Acne Rosacea.

Methods شDiagnosis of Demodex parasite

Although it is uncomfortable to think that mites live on your skin, it is common for a small number of mites to live on your skin. Demodex follicurum only becomes problematic when it exacerbates a person’s former skin problems, such as acne rosacea. Also, according to several studies, Demodex parasites themselves can cause skin diseases.

The body of Demodex follicorum is microscopic and cannot be seen with the naked eye. You should see a doctor for a definitive diagnosis. To diagnose these mites, your doctor will take a small sample of follicular tissue and oils on your face. By placing this removed skin tissue under a microscope, the presence of these mites on the face can be detected.

It is also possible to detect the presence of Demodex folliculum on the body by examining some of the symptoms. These symptoms include the following:

  • Sudden dryness of the skin (following severe infection with Demodex follicorum);
  • Scaling or itching of the skin;
  • Existence of scabs around hair follicles;
  • Redness of the skin;
  • Increased skin sensitivity;
  • feeling irritated;
  • Rough skin like sandpaper;
  • Eczema.

Demodex treatment

In most cases, you do not need to do anything against the mites unless they are troublesome. But if necessary, using a variety of anti-Modex products can get rid of these mites and their eggs. However, there are various home and medical treatments for this problem:

Home treatment

Tea tree oil

Use of tea tree oil to treat blepharitis caused by Demodex

Using tea tree oil, you can control the population of Demodex folicum mites on your eyelashes. To do this, apply a solution containing 50% tea tree oil on your eyelashes. Thus the Demodexes are eliminated. Then, by rubbing pure tea tree oil on the lashes, all the remaining mite eggs are removed. Tea tree oil has the ability to destroy demodex mites and their eggs.

Other home remedies include:

  • Daily bath to reduce oily skin secretions that are Demodex foods;
  • Daily washing of hair and eyelids with a mild shampoo;
  • Use mild non-soap cleansers twice a day;
  • Avoid greasy cleansers, lotions and sunscreens.

Medical treatments

If home remedies do not work, it is best to see a doctor. Sometimes home remedies can not reduce the Demodex population. Therefore, the presence of medication is necessary to remove excess skin fat.

Medicinal ointments are used to remove Demodex follicular mites that sit on the eyelashes. These ointments trap the mites and prevent them from spawning inside the hair follicles.

A variety of creams, gels and facial cleansers that contain the following active ingredients are also helpful:

  • Benzyl benzoate, salicylic acid, selenium sulfide, sulfur;

Of course, your doctor may also prescribe some of the following medications:

  • Crotamiton (Orax);
  • Ivermectin (ivermectol);
  • Metronidazole (flagellum);
  • Permethrin (Knicks, Limited).

However, when the number of Demodex is out of control or the immune system of some patients is very weak, the doctor prefers to prescribe the oral drug ivermectin. In addition, people with immunosuppressive diseases such as AIDS should be treated by a physician. Because the body of these people will contain a lot of mites.

last word

If you suffer from inflammatory diseases such as rosacea and acne, you need to be more careful about your health because your body may be constantly full of minerals such as Demodex and your symptoms may worsen. Skin infections also increase the likelihood of an increase in demodex. So you have to take the necessary care. If you have experience in this field, we would be happy for you to share it with us.

Warning! This article is for educational purposes only and you should consult your doctor or specialist to use it. more information






What is Demodex parasite and what effect does it have on skin and hair health?

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