Husband lymphocyte injections (LIT) Who it is for: Patients who are negative for closed antibodies Treatment: Every 2-4 weeks, every 4 times as a course of treatment, with a recheck of closed antibodies after 2 weeks after the last treatment. If it turns positive, pregnancy can be attempted and treatment should be maintained with injections every 2-3 months until pregnancy. If the test is still negative, an additional course of treatment is required. Usually, if three courses of treatment do not result in a positive result, another treatment will be needed. Some patients may conceive before completing a course of treatment and will still need to complete at least one course of treatment. The injection schedule is not affected by menstrual period! Zhang Jianping, Department of Obstetrics, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University Blood donor: The first choice is the patient’s husband. If the patient’s husband is unable to supply blood due to blood-borne diseases such as hepatitis B and C, he may choose to use the blood of someone related to the patient’s husband for treatment. If a suitable donor cannot be found within the above range, a healthy person who is not related to the patient may be sought. Blood must be drawn on an empty stomach. The amount of blood to be drawn: 20 ml per time, equivalent to one-thirtieth of a bottle of mineral water (calculated as 600 ml). It must be drawn immediately and cannot be stocked. Place of treatment: Prenatal Diagnostic Unit, 3rd Floor, Emergency Building (Lingnan Building B), The Second Hospital of Sun Yat-sen University. Blood will be drawn before 10:00 a.m. every Monday through Friday. Another note: Currently for this treatment, the cost of one treatment is 209 RMB.