At present, the reasons for the long deviation of the placenta position are not very clear. It may be related to, for example, a high number of miscarriages, scraping, polyps or lesions in the uterine cavity (such as uterine fibroids, adenomyosis), and twin pregnancies, which can increase the risk of placental hypoplasia. It boils down to the size and thickness of the placenta. From the uterine environment, the number of miscarriages and severe uterine damage can also have an impact, and from the perspective of the fertilized egg, if the development of the fertilized egg and the uterine soil are not synchronized, it can also lead to placenta praevia. So, it is not clear whether placenta praevia and adenomyosis are related! We can only say that it may be related. There are 3 types of placenta praevia: complete placenta praevia, partial placenta praevia and low placenta praevia. Patients with adenomyosis plus placenta praevia need to be more cautious and should go to the hospital as soon as any discomfort occurs in order to prevent miscarriage. Patients who experience bleeding and redness during pregnancy, which means that they may be at risk of preterm miscarriage, and therefore need birth control to be able to continue the pregnancy. If you have adenomyosis with placenta praevia, you need to pay attention to: 1. reduce your activities, rest in bed with the left side lying down, if you have abdominal pain, bleeding and other uncomfortable symptoms, seek medical attention immediately. 2. 2, avoid activities that increase abdominal pressure, such as forceful defecation, frequent coughing, squatting, etc. Avoid stimulating the abdomen with your hands, and move gently when changing positions. 3, keep the vulva clean, perineal pad sanitary cleaning pad, change underwear regularly to prevent infection. 4, the diet should be nutritious, comprehensive and more iron-rich food, such as dates, lean meat, animal liver, etc. to prevent anemia. Long-term bedridden to avoid constipation should increase the intake of vegetables and fruits, and develop the habit of regular bowel movements. 5, long-term bedridden people should be appropriate physical activity, family members can help to give lower limb massage to prevent muscle atrophy, to prevent thrombosis. At the same time, deep breathing exercises should be performed daily to exercise the lung function and prevent pneumonia. 6.Conduct fetal self-monitoring – self-counting fetal movements.