17 weeks of low placenta should be taken to avoid stimulation, pay attention to hygiene, medication (such as progesterone) and other interventions to prevent abnormal symptoms such as vaginal bleeding. 1. Avoid stimulation: Pregnant women should pay attention to rest, maintain appropriate activities, avoid strenuous exercise as well as sex, prohibit vaginal and anal examination, and avoid actions that increase abdominal pressure in life, such as coughing, etc., which will induce the symptoms of bleeding from low lying placenta. 2. Pay attention to hygiene: As the placenta is low at 17 weeks, the placenta surface is close to the external cervical opening, which is easy to induce pathogenic bacterial infections, so it is recommended that pregnant women should pay attention to hygiene in their life and keep the vulva dry. 3. medication: if the diagnosis of 17 weeks low placenta is established, and there is vaginal bleeding, it is recommended that under the guidance of the doctor, the use of drugs for fertility preservation treatment, such as progesterone and other drugs, it should be noted that the drug may appear during the period of drowsiness, dizziness, dizziness and other adverse reactions, to avoid unauthorized use of medication, so as to avoid the adverse effects. 17 weeks of low placenta, the patient should eat a healthy diet, maintain a good state of mind, if the patient has vaginal bleeding and other symptoms, it is recommended to seek medical attention in a timely manner, under the guidance of the doctor, improve the relevant examination, to take the correct treatment.