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University Hospital Leipzig - Oral and Maxillofacial Surgery is working with Canfield Vectra M3

University Hospital Leipzig - Oral and Maxillofacial Surgery is working with Canfield Vectra M3.

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SHR dauerhafte Haarentfernung - weltweiter Erfolg!

Als vor ca. 3 Jahren SHR zur dauerhaften Haarentfernung auf den Markt kam, waren wir...

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Top News for Ellman Surgitron User RF

Everybody who cuts in microsurgery and is using only the best of the best is knowing Ellman with...

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CEO Almalasers-Ziv Karni und CEO Canfield-Doug Canfield

supported Laserwelt at the biggest Derm Congress in German speaking countries, Fortbildungswoche...

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Uniklinik München, Prof. Ruzicka bought Canfield X3

Laserweltteam has won another University Hospital as new costumer. Prof. Dr. med. Dr. h.c. Thomas...

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Terms & definitions around laser treatments

• • Hair bulbus
    
  • final part of the hair deep inside the skin, starting point of the hair
  • shaft; consists of hair papilla and the spindle cells.
  • Hair cycle
    
  • the follow-through of the different phases of hair growth (anagen,
  • catagen, telogen)
  • Hair density
    
  • amount of terminal hair per cm² on an adult head; the density of body hair
  • is considered to be less important. The density of hair is less than the
  • density of hair follicles.
  • Hair diameter
    
  • diameter of the hair fibre. Hairs with a diameter up to 60 micrometer are
  • thin hairs, those between 60 – 80 micrometer are normal hairs and hairs
  • with a diameter more than 80 micrometer are thick hairs.
  • Hair fibre
    
  • see also hair shaft
  • Hair follicle
    
  • protrusion on the epidermis
  • Hairfree gel
    
  • hair growth stopper, e.g. Vaniqa, quite often referred to as hairfree gel.
  • The drug was originally used in the treatment of sleeping sickness. It
  • decelerates the synthesis of substances which are important for the
  • regulation and differentiation of hair follicles. For treatment to be
  • successful, permanent regular (daily) usage of the drug-containing cream
  • is required
  • Hair germ
    
  • living form of the hair during the telogen phase
  • Hair keratin
    
  • see also keratin
  • Hair matrix
    
  • cell layer on top of the papilla; starting point of mitosis, i.e. of hair
  • growth
  • Hair muscle (Musculus arrector pili)
    
  • has its origin in the dermis, lifts the hair
  • Hair organ
    
  • see hair follicle
  • Hair papilla
    
  • conical compound of dermis cells containing blood vessel, supplies
  • nutrition to the hair bulbus
  • Hair removal, Permanent hair removal
    
  • two kinds of hair removal are distinguished: temporary hair removal
  • (depilation) and permanent hair removal (epilation). Laserwelt only offers
  • the permanent hair removal treatments. Methods of permanent hair removal
  • are needle, laser und pulsed light epilation.
  • Hair root
    
  • the inner part of the hair lying inside the skin. The hair root is
  • protected by several layers called follicles.
  • Hair shaft
    
  • mature keratin fibre consisting of spindle-formed cells and tile-shaped cuticula
  • cells
  • Hair thickness
    
  • see hair diameter
  • Hair types
    
  • according to their diameter and pigmentation, lanugo (downy) hair, vellus
  • (wool) hair and adult (terminal) hair are distinguished. Each type can
  • turn into another.

• Lanugo hair: thin, unpigmented (fair) hair. Embryos already have lanugo hair.

• Vellus hair: thin, pigmented hair without medulla. The classic hair on children’s bodies.
  Terminal hair: thin, pigmented hair with medulla. Sexual hormones turn vellus hair into terminal hair. Dependent on the specific sexual hormone, on different body sites and in different intensities.

• ·         Hemangioma
  A hemangioma is a benign growth of blood vessels, mostly congenital or developing in the first weeks of life. Capillary and cavernous hemangioma are distinguished. The capillary hemangioma is formed by capillaries of a small inner diameter, most often inside the skin or mucous membrane. Cavernous hemangioma in contrast show vessels of a large diameter and are mostly red or blue. There are also cutaneous and subcutaneous hemangioma as well as mixed forms. The cutaneous hemangioma is a sharply formed, flat or eminent knot. Most often, it diminishes spontaneously after 2 to 5 years. In case of the subcutaneous hemangioma, a blurred, blue and flat tumour is visible through the skin. A spontaneous regression is less frequent than in the case of the cutaneous form. Several hemangiomas on a body site are called hemangiomatose. They occur most often in combination with genetic diseases as the blue rubber bleb nevus syndrome, Hippel-Lindau syndrome, mafucci syndrome or sturge-weber-krabbe syndrome. Photos and further information on hemangioma

• • Hirsutism
    
  • skin disease of excessive hair growth. 1. About 90% of hirsutism is
  • genetic. People with dark hair and people with coloured skin get hirsutism
  • more often than people with blond hair. Thus, a family anamnesis is
  • important. If hirsutism is genetic, the male hormone level in the blood is
  • normal, especially the testosterone level. 2. An increased production of
  • mail hormones in the ovaries (e.g. due to tumours or polycystic ovaries). In
  • this case, menstruation is weak or not existing at all. In parallel infertility
  • and hair growth of a male type occur. 3. Increase of hormone production in
  • the adrenal body (due to tumours or to hormone diseases).
    
  • 4. Hypophysis and hypothalamus disturbances (parts of the brain responsible
  • for the hormone production)
    
  • 5. Obesity type II diabetes (maturity-onset diabetes mellitus). 6. Low
  • function of the thyroid.
    
  • 7. Also different kinds of medicaments can cause hirsutism. It is
  • recommended to consult a doctor to find out whether medicaments can be a
  • reason for excessive hair growth. If you note excessive hair growth,
  • eventually irregularities in menstruation or signs of typical male
  • characteristics, you should consult your gynaecologist, or a gynaecologist
  • or internist specialized in hormone disturbances. Body and hormone analyses
  • are required when starting therapy. A tumour producing hormones must also be
  • ruled out.
  • Holocrine
    
  • a certain kind of secretion process in glands. The complete gland cell is
  • turned into the secretion (see here), e.g. in sebaceous glands
  • Hormonal
    
  • consisting of hormones, referring to hormones
  • Hormone
    
  • substance built inside the body, regulates the function of specific organs
  • Hormone level
    
  • total hormones and their function inside the organism
  • Hydrochloric acid
    
  • strong acid of chlorine and hydrogen, its compounds with metals (salts)
  • are called chlorides
  • Hydrogen bond
    
  • compound between hydrogen and oxygen contributing to the stability of the
  • hair proteins
  • Hydrogen peroxide
    
  • compound of hydrogen and oxygen, used for oxidation and bleaching
  • Hydrolipid film
    
  • water-sebum film
  • Hygroscopic
    
  • water-attracting (from the air)
    
• • Hypotrichosis
    
  • congenital or acquired massive reduction of healthy hair