| 释义 |
menstrual irregularity menstrual irregularity An alteration in the regular timing of the MENSTRUAL PERIODS. This is normal at the beginning of the menstrual life (menarche) and before the menopause. At other times it may be due to missed periods, pregnancy followed by early miscarriage, ANOREXIA NERVOSA, excessive dieting, strenuous athletics or midcycle bleeding. |