During the period between September，1970 and July，1971，we took measurement of 220
pregnant women and nursing mothers (the total number of subjects，571) for the purpose of obtaining basic data for the sizing of preεnant and nursing women's dothes. 54 parts of each body were measured with the Silhouettor and the data were arranged on the 20 items which have close relation to pregnancy. We studied the measurements of parts of the bodies of pregnant and nursing women，the increase and decrease of the measurements，the ratio and the correlation of length，width，weight etc. to height. Here is a brief summary
of the results. 1. Pregnant women show a remalkable increase in abdominal extension height(front)，total crotch length，abdominal slope，weight，girth length and thickness. 2. A remarkable increase in general can be seen between the 5th and 6th month and 8th and 9th month of pregnancy.
3. The incrcase of girth length is mainly due to the increase of thickness rather than of width. The increase of thickness is more remarkable in the front part than in the back part. 4. Classification by stature reveals that shorter women suffer a greater change of body type than taller women.
5. After childbirth, the degree to which parts of the body are reduced to the conditions before pregnancy is greater in length，thickness and abdominal slope，and smaller in girth length，width and weight.