Prideaux cites a case at five, and Gaugirau Casals, a doctor of Agde, has seen a girl of six years who suffered abdominal colic, hemorrhage from the nose, migraine, and neuralgia, all periodically, which, with the association of pruritus of the genitals and engorged mammae, led him to suspect amenorrhea.

He ordered baths, and shortly the menstruation appeared and became regular thereafter.

Brierre de Boismont records cases of catamenia at five, seven, and eight years; and Skene mentions a girl who menstruated at ten years and five months.

She was in the lowest grade of society, living with a drunken father in a tenement house, and was of wretched physical constitution, quite ignorant, and of low moral character, as evinced by her specific vaginitis.

Occurring from nine years to the ordinary time of puberty, many cases are recorded.
Instances of protracted menstruation are, as a rule, reliable, the individuals themselves being cognizant of the nature of true menstruation, and themselves furnishing the requisite information as to the nature and periodicity of the discharge in question.