Ear hair

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Ear hair protruding from the external auditory meatus in a middle-aged male. Note the fine vellus hair growth on the antitragus and helix. Ear hair.jpg
Ear hair protruding from the external auditory meatus in a middle-aged male. Note the fine vellus hair growth on the antitragus and helix.
Ear hair protruding from the external auditory meatus in a middle-aged male. Long ear hair on man.png
Ear hair protruding from the external auditory meatus in a middle-aged male.

Ear hair is the terminal hair arising from folliculary cartilage inside the external auditory meatus in humans. [1] In its broader sense, ear hair may also include the fine vellus hair covering much of the ear, particularly at the prominent parts of the anterior ear, or even the abnormal hair growth as seen in hypertrichosis and hirsutism. Medical research on the function of ear hair is currently very scarce.

Contents

Hair growth within the ear canal is often observed to increase in older men, [2] :206 together with increased growth of nasal hair. [3] Visible hair that protrudes from the ear canal is sometimes trimmed for cosmetic reasons. [4] :97 Excessive hair growth within or on the ear is known medically as auricular hypertrichosis . [5] :125 Some men, particularly in the male population of India, have coarse hair growth along the lower portion of the helix, a condition referred to as "having hairy pinnae " (hypertrichosis lanuginosa acquisita). [6]

Structure

Strand of human hair at 200x magnification Menschenhaar 200 fach.jpg
Strand of human hair at 200× magnification

Hair is a protein filament that grows from follicles in the dermis, or skin. With the exception of areas of glabrous skin, the human body is covered in follicles which produce thick terminal and fine vellus hair. It is an important biomaterial primarily composed of protein, notably keratin.

Clinical significance

Society and culture

Radhakant Bajpai, an Indian grocer, was recognized by Guinness in 2003 as having the longest ear hair in the world, measuring 13.2 cm. In a 2009 interview, when his hair had reached 25 cm, he said that he considered the long ear hair to be a symbol of luck and prosperity.[ citation needed ]

See also

Related Research Articles

<span class="mw-page-title-main">Hirsutism</span> Excessive hair growth on parts of the body where hair is usually minimal

Hirsutism is excessive body hair on parts of the body where hair is normally absent or minimal. The word is from early 17th century: from Latin hirsutus meaning "hairy". It usually refers to a male pattern of hair growth in a female that may be a sign of a more serious medical condition, especially if it develops well after puberty. Cultural stigma against hirsutism can cause much psychological distress and social difficulty. Discrimination based on facial hirsutism often leads to the avoidance of social situations and to symptoms of anxiety and depression.

<span class="mw-page-title-main">Leg hair</span> Hair in the leg areas of adolescent and adult humans

Leg hair is hair that grows on the legs of humans, generally appearing after the onset of puberty. For aesthetic reasons and for some sports, people shave, wax, epilate, or use hair removal creams to remove the hair from their legs: see leg shaving.

<span class="mw-page-title-main">Hair loss</span> Loss of hair from the head or body

Hair loss, also known as alopecia or baldness, refers to a loss of hair from part of the head or body. Typically at least the head is involved. The severity of hair loss can vary from a small area to the entire body. Inflammation or scarring is not usually present. Hair loss in some people causes psychological distress.

<span class="mw-page-title-main">Minoxidil</span> Medication used to treat hair loss

Minoxidil is a medication used for the treatment of high blood pressure and pattern hair loss. It is an antihypertensive and a vasodilator. It is available as a generic medication by prescription in oral tablet form and over the counter as a topical liquid or foam.

<span class="mw-page-title-main">Chest hair</span> Hair that develops during puberty

Chest hair is hair that grows on the chest in the region between the neck and the abdomen. Chest hair develops during and after puberty along with other types of androgenic hair.

<span class="mw-page-title-main">Hypertrichosis</span> Hair disease characterized by hair growth that is abnormal in quantity or location

Hypertrichosis is an abnormal amount of hair growth over the body. The two distinct types of hypertrichosis are generalized hypertrichosis, which occurs over the entire body, and localized hypertrichosis, which is restricted to a certain area. Hypertrichosis can be either congenital or acquired later in life. The excess growth of hair occurs in areas of the skin with the exception of androgen-dependent hair of the pubic area, face, and axillary regions.

<span class="mw-page-title-main">Vellus hair</span> Type of hair that is short, thin, slight-colored, and barely noticeable

Vellus hair is short, thin, light-colored, and barely noticeable hair that develops on most of a human's body during childhood. Exceptions include the lips, the back of the ear, the palm of the hand, the sole of the foot, some external genital areas, the navel, and scar tissue. The density of hair – the number of hair follicles per area of skin – varies from person to person. Each strand of vellus hair is usually less than 2 mm long and the follicle is not connected to a sebaceous gland.

<span class="mw-page-title-main">Ear canal</span> Tube running from the outer ear to the middle ear

The ear canal is a pathway running from the outer ear to the middle ear. The adult human ear canal extends from the pinna to the eardrum and is about 2.5 centimetres (1 in) in length and 0.7 centimetres (0.3 in) in diameter.

<span class="mw-page-title-main">Ear pain</span> Pain in the ear

Ear pain, also known as earache or otalgia, is pain in the ear. Primary ear pain is pain that originates from the ear. Secondary ear pain is a type of referred pain, meaning that the source of the pain differs from the location where the pain is felt.

The management of hair loss, includes prevention and treatment of alopecia, baldness, and hair thinning, and regrowth of hair.

<span class="mw-page-title-main">Otitis</span> Medical condition

Otitis is a general term for inflammation in ear or ear infection, inner ear infection, middle ear infection of the ear, in both humans and other animals. When infection is present, it may be viral or bacterial. When inflammation is present due to fluid build up in the middle ear and infection is not present it is considered Otitis media with effusion. It is subdivided into the following:

<span class="mw-page-title-main">Surfer's ear</span> Common name for an abnormal bone growth within the external ear canal

Surfer's ear is the common name for an exostosis or abnormal bone growth within the ear canal. They are otherwise benign hyperplasias (growths) of the tympanic bone thought to be caused by frequent cold-water exposure. Cases are often asymptomatic. Surfer's ear is not the same as swimmer's ear, although infection can result as a side effect.

<span class="mw-page-title-main">Body hair</span> Hair on the human body during and after puberty

Body hair or androgenic hair is terminal hair that develops on the human body during and after puberty. It is different from head hair and also from less visible vellus hair, which is much finer and lighter in colour. Growth of androgenic hair is related to the level of androgens and the density of androgen receptors in the dermal papillae. Both must reach a threshold for the proliferation of hair follicle cells.

<span class="mw-page-title-main">Ear drop</span> Form of medication placed in ears

Ear drops are a form of topical medication for the ears used to treat infection, inflammation, impacted ear wax and local anesthesia. They are commonly used for short-term treatment and can be purchased with or without a prescription. Before using ear drops, refer to the package insert or consult a health professional for the amount of drops to use and the duration of treatment.

Myringoplasty is the closure of the perforation of pars tensa of the tympanic membrane. When myringoplasty is combined with removal of scar tissue, it is called tympanoplasty. The operation is performed with the patient supine and face turned to one side. The graft material most commonly used for the surgery is temporalis fascia. The tragal cartilage and tragal perichondrium are also used as the graft by some surgeons.

The growth of human hair occurs everywhere on the body except for the soles of the feet, the palms of the hands, the inside of the mouth, the lips, the backs of the ears, some external genital areas, the navel, scar tissue, and, apart from eyelashes, the eyelids. Hair is a stratified squamous keratinized epithelium made of multi-layered flat cells whose rope-like filaments provide structure and strength to the hair shaft. The protein called keratin makes up hair and stimulates hair growth. Hair follows a specific growth cycle with three distinct and concurrent phases: anagen, catagen, and telogen. Each phase has specific characteristics that determine the length of the hair.

<span class="mw-page-title-main">Prepubertal hypertrichosis</span> Medical condition

Prepubertal hypertrichosis, also known as childhood hypertrichosis, is a cutaneous condition characterized by increased hair growth, found in otherwise healthy infants and children. Prepubertal hypertrichosis is a cosmetic condition and does not affect any other health aspect. Individuals with this condition may suffer with low self esteem and mental health issues due to societal perceptions of what a "normal" appearance should be. The mechanism of prepubertal hypertrichosis is unclear, but causes may include genetics, systemic illnesses, or medications.

<span class="mw-page-title-main">Otitis externa</span> Inflammation of the ear canal

Otitis externa, also called swimmer's ear, is inflammation of the ear canal. It often presents with ear pain, swelling of the ear canal, and occasionally decreased hearing. Typically there is pain with movement of the outer ear. A high fever is typically not present except in severe cases.

Staphylococcus schleiferi is a Gram-positive, cocci-shaped bacterium of the family Staphylococcaceae. It is facultatively anaerobic, coagulase-variable, and can be readily cultured on blood agar where the bacterium tends to form opaque, non-pigmented colonies and beta (β) hemolysis. There exists two subspecies under the species S. schleiferi: Staphylococcus schleiferi subsp. schleiferi and Staphylococcus schleiferi subsp. coagulans.

Auricular hypertrichosis is a genetic condition expressed as long and strong hairs growing from the helix of the pinna.

References

  1. W. Steven Pray. "Swimmer's Ear: An Ear Canal Infection" (PDF). Naveh Ltd. Licensed Distributor of Medical Pharmaceuticals. Retrieved March 9, 2016.
  2. Leyner, Mark; Goldberg, Billy (July 26, 2005). Why Do Men Have Nipples?: Hundreds of Questions You'd Only Ask a Doctor After Your Third Martini. Crown Publishing Group. ISBN   9780307337047 . Retrieved September 8, 2014 via Google Books (preview).
  3. Nagourney, Eric (December 13, 2012). "Why Is Hair Growing Out of There?". The New York Times . Retrieved September 8, 2014.
  4. Livingston, Ruth (June 17, 2010). Advanced Public Speaking: Dynamics and Techniques. Xlibris Corporation. ISBN   9781453508039 . Retrieved September 8, 2014 via Google Books (preview).
  5. Jackson, Scott; Nesbitt, Lee T. (April 25, 2012). Differential Diagnosis for the Dermatologist. Springer Science & Business Media. ISBN   978-3-642-28006-1 . Retrieved October 24, 2014 via Google Books (preview).
  6. "Otoscopy: The Pinna". Hawke Library. Archived from the original on October 26, 2014. Retrieved October 26, 2014.
  7. "Tinnitus Signs and Symptoms". UCSF Medical Center. University of California San Francisco. Retrieved 2014-10-28.
  8. Joseph P Garry (Feb 28, 2010). "Otitis externa". Medscape.com. Retrieved 2012-08-31.
  9. Toriumi, MD, Dean; Raymond, Konior, MD; Berktold, MD, Robert (August 1988). "Severe hypertrichosis of the external ear canal during minoxidil therapy". Arch Otolaryngol Head Neck Surg. 114 (8): 918–9. doi:10.1001/archotol.1988.01860200102029. PMID   3390339.{{cite journal}}: CS1 maint: multiple names: authors list (link)