Active exercise may reduce breast cancer risk, particularly in young parous women.

This reduced risk was present among both nulliparous and parous women.

Children born to parous mothers had higher birth weights at each gestational age, as anticipated (Figure 3).

After giving birth, the vaginal opening usually has nothing left but hymenal tags (carunculae myrtiformes) and is called "parous introitus".

The parous females (those who have not given birth yet), yearlings, and young of the year become inactive later because they have more weight to gain first.

Nonspecific reactions producing indeterminate results in uninfected persons have occurred more frequently among pregnant or parous women than among other persons (73,74).

Straining on the porcelain has hygienic benefits but causes injuries to important autonomic nerves - particularly in elderly parous women - that contribute to many Western diseases.

Among women aged 50 years and older, compared with women who had never been pregnant, cases were more than twice as likely as controls to have been pregnant or parous, without breastfeeding (Table 2).

Contraceptive Technology reports that the method failure rate of the Prentif cervical cap with spermicide is 9% per year for nulliparous women (women who have never given birth), and 26% per year for parous women.

For instance, a meta-analysis of 8 population-based studies in the Nordic countries found that nulliparity was associated with a 30% increase in risk of breast cancer compared with parous women, and for every 2 births, the risk was reduced by about 16%.