मासिक धर्म (en. Menstruation)

the period in the menstrual cycle when chances of conception are least, approximately ten days before and ten days after the beginning of menstruation.

absence of menstruation for 35-40 days.

Effective educational programs are essential to providing children and adolescents with clear and accurate information about menstruation.

Withdrawal bleeding can be induced monthly, like menstruation, or less often, usually every three months, if the patient desires.

Infrequent menstruation defined by a cycle length between 6 weeks and 6 months.

Menstruation education is frequently taught in combination with sex education in the US, although one study suggests that girls would prefer their mothers to be the primary source of information about menstruation and puberty.

Most Christian denominations do not follow any specific rituals or rules related to menstruation.