You can wash your hair and bathe one week after a natural miscarriage. After a natural miscarriage, as women are generally weaker, washing their hair and bathing too soon should be avoided to prevent a decrease in resistance and the risk of catching a cold. Even after one week, care should be taken when washing hair and bathing. The bathing time should not be too long, ideally less than half an hour, and the water temperature should not be too hot or too cold, as these can affect the body's recovery. After bathing, promptly dry your hair and body with a dry towel to prevent catching cold. After bathing, it is best to keep the room ventilated to avoid problems like dizziness caused by poor air circulation.