Color weakness may be hereditary, and timely examination is needed for color weakness. From the analysis of the causes of color weakness, it has two kinds of congenital color weakness and acquired color weakness, acquired color weakness is extremely rare, in which congenital color weakness is mainly acquired through heredity, it is X chromosome recessive heredity, and it has the characteristics of family aggregation. Therefore, if parents or grandparents suffer from color weakness, there is a certain chance that their offspring will also have color weakness. There is no way to avoid the hereditary probability of color weakness, the family has color weakness patients, after the birth of the offspring need to bring the child in time for color weakness examination, once the offspring is diagnosed with color weakness, can be corrected through the wearing of glasses and other ways to reduce the impact of color weakness on the patient’s life. It is recommended that patients with color deficiency should be examined and treated in a timely manner, and if they are worried about their offspring’s color deficiency, they can take them to the ophthalmology department of the hospital for vision examination in a timely manner.