1. Some or all defects caused by nose infection.

2. Some or all nasal defects caused by various congenital malformations, such as severe saddle nose.

3, nasal trauma (including human and animal bites) and cause partial or total defects.

4. Nasal defects or nasal scars caused by burns (including open flame burns, hydrothermal burns and chemical burns).

5, nasal tumors (including a large area of moles, hemangioma, etc.). ) requires surgical resection or the tumor has been removed, resulting in nasal defects.