The premarital examination includes the following items: internal examination, height, weight, auscultation of heart and lungs, examination of liver, gallbladder and spleen; surgical examination of thyroid, breast, prostate, spine and joints of limbs; ophthalmology examination of vision; ear, nose and throat examination of hearing; stomatology examination of dental caries and calculus; blood sampling for blood sugar, lipids, liver function and kidney function. Additional examinations include electrocardiogram, examination of frontal and lateral chest films, ultrasound examination of liver, gallbladder, pancreas, spleen and kidney as well as ultrasound examination of uterus and ovaries, and ultrasound examination of bladder, prostate and testicles. Be sure to ask about family history of genetic disorders and any history of mental disorders. Focus on checking the female genitalia for abnormalities, such as the absence of vagina and congenital double uterus; for males, check for prepuce, circumcision, varicocele and other diseases.