How is earwax formed?
Disease description:
I've always found human body organs to be fascinating, especially their ability to secrete substances, such as earwax. I'd like to ask the doctor: how is earwax formed?
Earwax, medically known as cerumen, is a yellow or brown waxy substance secreted by the ceruminous glands in the skin of the external ear canal. Its main components include keratin, fatty acids, cholesterol, sebum, and some shed skin cells. The following points explain the formation process of earwax:
1. **Protective Function**: Earwax naturally forms in the ear canal, serving to lubricate and protect the external auditory canal. It prevents dust, small insects, and other tiny particles from entering deep into the ear, thus protecting the hearing organs.
2. **Self-cleaning Mechanism**: Under normal circumstances, actions such as chewing, opening the mouth, or shaking the head help gradually move earwax outward, where it either falls out on its own or is swallowed. This is the body's natural self-cleaning mechanism.
3. **Secretion Regulation**: The amount and type of cerumen produced vary from person to person. Some individuals produce dry earwax that easily falls out on its own, while others produce wet, soft earwax that may require regular cleaning.
Note: If you feel that you have excessive earwax or experience ear discomfort, avoid attempting to remove it yourself. It is best to consult a doctor.