Spider Vein

The Principle of 980nm Diode Laser for Spider Nevus Treatment

Its core lies in the selective photothermal effect of lasers, with specific interpretation as follows:

Core Principle

1. Targeted Action

The 980nm wavelength laser can penetrate the superficial layer of the skin (approximately 1-2mm) and be specifically absorbed by hemoglobin in the blood vessels of spider nevi, avoiding damage to surrounding normal tissues.

2. Treatment Process

- After absorbing laser energy, hemoglobin is converted into thermal energy, causing damage to vasular endothelial cells and destruction of blood vessel walls;

- Hemoglobin in blood vessels is broken down into small molecular clusters, which are absorbed through tissue metabolism;

- The dilated blood vessels contract, coagulate and gradually occlude, and finally the spider nevi fade away.

Technical Advantages

- Laser energy can be focused on a range of 0.2-0.5mm, acting on the lesion with high precision;

- During treatment, it can stimulate the proliferation of dermal collagen, increase the thickness and density of the epidermis, and enhance skin elasticity and resistance.

Application Scope

In addition to spider nevi, it can also be used for the treatment of superficial vascluar lesions such as telangiectasia, facial flushing, and cherry angiomas.