What Is Skin Mucosa?

The skin is composed of the epidermis, dermis, and subcutaneous tissue, and is rich in blood vessels, nerves, lymphatic vessels, muscles, and skin appendages. Skin mucosa plays a crucial role in the human body, including barrier function, absorption function, secretion and excretion function, metabolic function, and temperature regulation function. So, what is skin mucosa? Let's take a closer look.

Skin mucosa covers the surface of the body and transitions with the mucosal lining of internal cavities at the mouth, nose, anus, urethra, vagina, and other locations. The skin is composed of the epidermis, dermis, and subcutaneous tissue, and is rich in blood vessels, lymphatic vessels, nerves, muscles, and skin appendages.

Skin mucosa serves various functions in the human body, including barrier function, absorption function, secretion and excretion function, metabolic function, sensory function, and temperature regulation function. Among these, one of the most important functions is immune-active organ function. In the human skin immune system, the immune function of the skin plays a crucial role in defending against external viruses, bacteria, and other antigenic substances.

Mucosal damage refers to injuries occurring in the oral cavity, tongue, eyes, external genitalia, anus, and other mucosal areas. It can occur concurrently with or independently of skin diseases and systemic disorders. Oral mucosal diseases have a wide range and involve multiple disciplines such as dentistry, dermatology, otolaryngology, and internal medicine.

There are various laboratory tests for mucosal diseases, which need to be considered in combination with the underlying causes. For example, infectious diseases can be diagnosed through bacteriological examination, viral diseases can be identified through virus culture, and histopathological examination can provide diagnostic evidence for tumors. Sexually transmitted diseases also require multiple tests, such as serological tests for syphilis, PCR tests for the diagnosis of various diseases, and mycological examinations for the diagnosis of fungal diseases.