34 weeks pregnant body weakness to identify the causes of treatment, anemia caused by the need for drug treatment, malnutrition to strengthen nutrition. 1. Anemia: when 34 weeks pregnant combined with iron deficiency anemia, severe cases can cause maternal weakness, dizziness and other symptoms, physical examination: pale skin and mucous membranes, dry hair, brittle nails and so on. The combination of clinical manifestations and blood and serum iron tests can assist in the diagnosis. Need to follow the medical advice to give iron polysaccharide and other drugs to correct anemia treatment, but also nutritional guidance. 2. Malnutrition: Pregnant women may have a history of malnutrition caused by prolonged partiality, early vomiting, gastrointestinal tract dysfunction, which can also cause symptoms of weakness in late pregnancy, combined with the history and clinical manifestations can assist in the diagnosis, and need to be instructed to strengthen the diet and nutrition. Weakness in the 34th week of pregnancy requires hospitalization in order to identify the cause and treat it in a timely manner.