What is inside a keloid scar?

Nov 28, 2025 Source: Cainiu Health

Dr. Liu Wenmin

Introduction

In general, keloids are primarily composed of excessively proliferated collagen fibers, along with blood vessels, fibroblasts, and other tissues. If you have any concerns, it is recommended to consult a healthcare professional in advance. Collagen fibers are the core component of keloids. During normal wound healing, collagen fibers arrange themselves in an orderly manner; however, in keloids, collagen fibers abnormally increase in number and become disorganized, forming dense masses of fibrous tissue.

Generally, keloids are primarily composed of excessive collagen fibers, along with blood vessels, fibroblasts, and other tissues. If you have any concerns, it is recommended to seek medical advice early. The detailed analysis is as follows:

Collagen fibers are the core component of keloids. During normal wound healing, collagen fibers are arranged in an orderly manner; however, in keloids, collagen fibers abnormally increase and become disorganized, forming dense masses of fibrous tissue. This results in a hard texture and raised appearance above the skin surface, which is the main reason for the firmness and elevation of keloids.

In addition to collagen fibers, keloids also contain a rich network of capillaries that supply nutrients to support fibrous tissue proliferation. Moreover, a large number of active fibroblasts are present within the lesion. These cells continuously secrete collagen fibers, promoting ongoing growth of the keloid. Some keloids may also involve inflammatory cells, leading to mild itching or pain.

If a keloid continues to grow or causes significant discomfort, prompt medical evaluation is necessary. Avoid squeezing or irritating the keloid to prevent worsening of the overgrowth. Treatment should follow professional medical guidance, with appropriate therapies selected to control its progression.

View All

How long does it take to recover from widespread chickenpox?

The recovery time for widespread chickenpox varies among individuals. Most people recover within 1 to 2 weeks, with children generally improving faster—usually within about a week—while adults may take up to 2 weeks. Proper scientific care can effectively shorten the recovery period. During this time, it is important to keep the skin clean and dry, avoid scratching the rash, and prevent scabs from falling off prematurely to minimize scarring.

View Full Answer

Who should not eat mixed-breed chicken

People who should avoid consuming undercooked chicken generally include pregnant women, infants and young children, individuals with weakened immune systems, those with poor digestive function, and people with underlying medical conditions. Undercooked chicken may carry pathogenic microorganisms such as Salmonella and Toxoplasma gondii. These pathogens can easily cross the placenta and affect fetal development, increasing the risk of birth defects, miscarriage, and other complications. They may also cause infections in pregnant women themselves, leading to symptoms such as fever and diarrhea.