Birth defects, also known as congenital anomalies, point out the abnormalities in morphology, structure, function, metabolism, spirit and behavior caused by the intrauterine development disorder of the mother before her death. Some abnormalities can be shown at birth, while others will be shown some time or even years after birth.

Abnormal morphological structure

Morphological and structural abnormalities are congenital malformations, such as anencephaly, spina bifida, abnormal rabbit lips and limbs.

Functional and metabolic defects

Functional and metabolic defects often lead to congenital mental retardation (commonly known as stupidity), deafness, deafness and other abnormalities.

Mental and behavioral defects

Mental behavior defects are often manifested as neurological symptoms, such as hereditary spastic ataxia, hepatolenticular degeneration, schizophrenia and so on.

Deformity defect

Malformation defect is the abnormal development of embryos in the early stage of development due to some factors. This kind of defect is the most common and serious defect in clinic.

Cracking defect

Cleavage defect is a defect caused by the damage of normal tissues of sperm and eggs during development for some reason.

deformity

Dysplasia is a defect caused by the poor development of a certain part or tissue of the fetus due to some factors during the development of the fetus.

Deformation defect

Deformation defect refers to the deformity caused by abnormal pressure acting on a certain part of the fetus, which changes the shape of the fetus.