Soreness and weakness after pregnancy are in most cases caused by pregnancy reactions. Because after pregnancy, the estrogen and progesterone in the body increase, this will lead to ligament relaxation and muscle flaccidity, showing the feeling of soreness and weakness. Especially in the early stages of pregnancy, drowsiness, nausea, vomiting and loss of appetite are normal and do not require special treatment. If you experience soreness and weakness in the middle and late stages of pregnancy, you should check your blood pressure and blood glucose in time. If the blood pressure and blood sugar are normal, it means there is no problem. If there is any abnormality, timely symptomatic treatment should be given. When blood pressure is high, promptly treat it with antihypertensive drugs. When the blood sugar is high is not serious, you can control the diet and the development of the disease. If the blood sugar is too high, you need to control the blood sugar with glucose-lowering drugs in time.