menstruation

Disorders of menstruation have much less influence on fecundity.

Irregularity and pain in menstruation are a frequent cause of neuroticism.

Her menstruation was irregular; did not come around for two months.

My menstruation is very painful and some months I have it twice.

His knowledge of the phenomena of menstruation was as wide and definite.

Accompanying the cessation of menstruation, changes in the breast occur.

This takes four or five days and constitutes "menstruation."

Puberty is the proper time for the appearance of menstruation.

A slight pain or at least a feeling of discomfort is present in most cases of menstruation.

The age at which menstruation ceases is called the menopause or climacteric.