1987 Volume 78 Issue 7 Pages 1161-1167
The sizes of the normal prostate were measured in 343 subjects aged 0 to 80 years by means of transabdominal sector scanning, and the growth of the prostate was studied. The weight of the prostate was computed using the formula for ellipsoid objects.
In the first decade, the prostate grew slowly, and the mean prostatic weight was 1.8g. in men between 6 and 10 years old. In the second decade, the prostate grew rapidly, and the mean weight became 16.0g. in men between 21 and 25 years old. There were good correlations between the prostatic weight and the age, the height, the body weight, or the body surface area in the first and second decades.
The prostate increased in weight slowly in men over 20 years old, too. After the mean weight became 21.1g. in men bewteen 36 and 40 years old, the prostate decreased in weight temporally in the fifth decade. In men between 51 and 70 years old, prostatic weight was stationary at 22 to 23g., and decreased again in men over 70 years old.
