There is a little light pink discharge in the sixth week of pregnancy, such as caused by preeclampsia when the need for fertility preservation treatment, cervical polyps caused by observation, if necessary, the removal of surgery. 1. Pre-eclampsia: It can cause a small amount of pale pink discharge from the vagina, which can be accompanied by paroxysmal lower abdominal pain, ultrasound examination to clarify the intrauterine pregnancy, combined with the clinical manifestations and progesterone can assist in the diagnosis. Need to pay attention to appropriate rest, and give progesterone and other drugs to protect the fetus treatment, treatment 7-10 days after the re-examination. 2. Ectopic pregnancy: It can also cause a small amount of light pink vaginal discharge, accompanied by pain in one side of the lower abdomen, combined with ultrasound, blood HCG (human chorionic gonadotropin) can assist in the diagnosis, according to the relief of the condition, can be given methotrexate and other medications as prescribed by the doctor for conservative treatment or surgical treatment. 3. Cervical polyp: It can also cause small amount of light pink vaginal discharge without abdominal pain, and the combination of medical history and gynecological examination can assist in the diagnosis. It can be observed temporarily, but when it occurs repeatedly, it is necessary to perform polyp removal surgery and send the removed tissue for pathological examination. When there is a little light pink discharge in the sixth week of pregnancy, it is necessary to go to the hospital in time in order to find out the cause and deal with it actively.