How does menstruation defer 20 days to do

Menstruation delay 20 days, should go to the hospital to do urine pregnancy test or blood HCG test to see if pregnant, whether there are some diseases related to pregnancy, to carry out further examination. Secondly, menstrual delay 20 days also want to see if it is not menstrual irregular symptoms, normal menstrual cycle 28 days or so, before and after a week delayed normal. Delay reached 40 days to 50 days is irregular menstruation, if three menstrual cycles delayed more than a week, it is necessary to take medicine treatment. Menstruation delay, dark color, less amount, lower abdomen cold pain, can take Qi Zhi Xiang Sha Wan, Tongjing Wan. If menstruation delay, less amount, light color, lower abdomen pain, waist soreness and weakness, can take warm palace Wan. If menstruation delay, less amount, there are blood clots, can eat Angelica Wan, Bazhen Muyi Wan, Angelica jujube particles and so on.