Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Accessory Structures of the Skin: Hair Growth and Types

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...

Papillary Dermis

Papillary Dermis

Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...

Accessory Structures of the Skin: Hair and Hair Follicles

Accessory Structures of the Skin: Hair and Hair Follicles

Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet.
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Study on the Potential Molecular Mechanism of Keloid Disease Associated With Single Cell Combined Mendelian Randomization.

Journal of cosmetic dermatology·2026

Same author

Pubic Lice.

The New England journal of medicine·2024

Same author

Recalcitrant nodular scabies showing excellent response to tofacitinib: five case reports.

Therapeutic advances in chronic disease·2023

Same author

Combination of fractional carbon dioxide laser with recombinant human collagen in periocular skin rejuvenation.

Journal of cosmetic dermatology·2023

Same author

Phthiriasis Pubis with Involvement of Axillae.

The American journal of tropical medicine and hygiene·2023

Same author

A plaque on the right retropharyngeal wall.

European journal of internal medicine·2022

Search research articles

Related Experiment Video

Updated: Mar 21, 2026

Iatrogenic Injury Recapitulated: Electroexcision Technique for Urethral Stricture Modeling in Rats

Iatrogenic Injury Recapitulated: Electroexcision Technique for Urethral Stricture Modeling in Rats

Published on: October 11, 2024

Ingrowing Hair: A Case Report.

Di-Qing Luo¹, Yu-Hua Liang, Xi-Qing Li

¹From the Department of Dermatology (D-QL, Y-KZ, FW), The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou; Department of Dermatology (Y-HL), The Fifth People's Hospital of Foshan, Foshan; Department of Dermatology (X-QL), Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; and Department of Dermatology (RS), Maulana Azad Medical College and LNJP Hospital, New Delhi, India.

|May 14, 2016

Summary

This summary is machine-generated.

Ingrowing hair, a rare skin condition, presents as a linear lesion caused by embedded beard hairs. Removing the hair and stopping the habit are effective treatments for this recurrent condition.

More Related Videos

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Published on: June 3, 2022

Related Experiment Videos

Last Updated: Mar 21, 2026

Iatrogenic Injury Recapitulated: Electroexcision Technique for Urethral Stricture Modeling in Rats

Iatrogenic Injury Recapitulated: Electroexcision Technique for Urethral Stricture Modeling in Rats

Published on: October 11, 2024

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Microscopic Replantation of Penile Glans Amputation Due to Circumcision

Published on: June 3, 2022

Area of Science:

Dermatology
Parasitology

Background:

Cutaneous diseases like pili migrans and creeping eruption can manifest as moving linear skin lesions.
These conditions are often caused by parasitic infections.
A rare variant involves a hair shaft embedded in the skin, termed 'ingrown hair'.

Observation:

A 30-year-old man presented with a year-long, slowly extending black linear eruption on his chin.
Examination revealed a 4-cm sub-dermal black line with surrounding erythema and folliculitis.
The patient had a habit of pulling or extruding beard hairs.

Findings:

Treatment with topical mupirocin improved inflammation, and two beard hairs with follicles were extracted.
A similar lesion recurred and was removed, identified as a beard hair with a follicle.
The patient was diagnosed with recurrent 'ingrowing hair'.

Implications:

The condition, 'ingrowing hair,' is distinct from 'ingrown hair' and characterized by embedded hairs.
Optimal management involves manual extraction of the involved hair and behavioral modification.
This case highlights a rare dermatological presentation and its successful treatment strategy.