The situations where the premarital examination fails include: genetic diseases, abnormal development of reproductive organs, and infectious diseases.
1. Suffering from genetic disorders
Mainly invisible genetic diseases, such as common albinism, total color blindness, glaucoma, anemia, etc. And the pattern of these genetic diseases is generally divergent within the patient's family, with no continuity between generations.
2. Abnormal development of reproductive organs
Abnormal development of reproductive organs, such as cryptorchidism, small testicles, and hypospadias in males, as well as congenital absence of vagina, vaginal diaphragm, hymen atresia, severe sexual dysfunction, and intersex deformities in females, are considered as failed premarital examinations. However, these conditions can be cured before getting married.
3. Suffering from infectious diseases
Infectious diseases mainly include AIDS, gonorrhea, syphilis, leprosy and other infectious diseases that are medically considered to affect marriage and childbirth. These are all cases of unqualified premarital examination.