-As the nose is the most prominent structure in human face. So any small defect in it causes great facial disfigurement. -Causes of nasal defects are classified into four types: congenital, infection, trauma and post tumour excision .-The nasal defects are evaluated according to their component layers. there are multiple techniques to restore nasal skin coverage defects which vary from skin grafts, local flaps, distant flaps and free flaps, while lining defects can be treated by tissues obtained from intranasal source (bipedicle vestibular skin advancement flap, septal mucoperichondrial hinge flap , ….. ) or from extranasal source (S.T.G., hard palate mucosal grafts and local in turned flaps), while skeletal framework defects are replaced by rib or cranial bone grafts for the upper 2/3 and by conchal or septal cartilage graft for the lower 1/3.