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Related Concept Videos

Papillary Dermis01:11

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 and...
Reticular Dermis01:15

Reticular Dermis

The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Accessory Structures of the Skin: Hair Growth and Types01:20

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...
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

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Related Experiment Video

Updated: Jul 9, 2026

Local Hyperthermia for Warts Treatment
04:25

Local Hyperthermia for Warts Treatment

Published on: November 8, 2024

Threading warts: a beauty parlor dermatosis.

Rajesh Kumar1, Vijay Zawar

  • 1Jagjivan Ram Hospital, Mumbai, India. rkderm@gmail.com

Journal of Cosmetic Dermatology
|December 1, 2007
PubMed
Summary

Warts can appear after eyebrow threading, a common cosmetic procedure. This may occur from existing warts spreading to the site or through contaminated tools at beauty salons.

Area of Science:

  • Dermatology
  • Cosmetology

Background:

  • Threading is a popular cosmetic procedure for facial hair removal and eyebrow shaping.
  • The development of warts at threading sites is an uncommon occurrence.

Observation:

  • This report details two cases where warts appeared post-threading.
  • One case involved koebnerization, where warts spread from a pre-existing lesion.
  • The second case suggests potential transmission from contaminated materials at a beauty parlor.

Findings:

  • The study highlights an unusual complication of a routine cosmetic procedure.
  • It identifies two distinct mechanisms for wart development following threading.
  • Koebnerization and potential iatrogenic transmission are discussed.

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Last Updated: Jul 9, 2026

Local Hyperthermia for Warts Treatment
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Implications:

  • Accurate identification of post-threading warts is crucial for proper management.
  • Understanding these transmission routes can inform preventative measures in beauty salons.
  • This research offers dermatological and cosmetological insights into managing this rare complication.