Hepatitis B is transmitted through blood, sexual contact, and mother-to-child transmission. Small triplet is a classification of viral hepatitis B. It is less contagious than large triplet, but it is also somewhat infectious. Whether or not intercourse is contagious for patients with minor triplets depends on the results of the deoxyribonucleic acid test for the hepatitis B virus. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The higher the deoxyribonucleic acid level of the hepatitis B virus, the more infectious it is; the lower the deoxyribonucleic acid level of the hepatitis B virus, the less infectious it is. Patients need to visit a hospital to clarify the deoxyribonucleic acid level of the hepatitis B virus. The virus can be transmitted through the semen of men and vaginal secretions of women, and protective measures need to be taken, or the hepatitis B vaccine can be injected, which can play a long protective role; 2. Negative deoxyribonucleic acid of hepatitis B virus: patients with negative deoxyribonucleic acid of hepatitis B virus, that is, applying a more sensitive kit, deoxyribonucleic acid of hepatitis B virus <20 IU/ML, is generally not infectious. If intercourse is possible without protective measures. It is prudent for family members to be vaccinated against hepatitis B, which can better prevent hepatitis B virus infection.