What a Young Woman Ought to Know is written by Mary Wood Allen, who had counseled a large community of young women in various parts of United Stats. Many girls are unfortunate to be trained by conventionalities of society which lead them to a dilemma of questioning the right and wrongs. This book provides honest answers through the facts collected from otherwise intelligent and well informed girls. Understanding womanhood can a woman life safer and healthier. Various topics on the problems faced by women has been discussed and divided under three major parts comprising "THE VALUE OF HEALTH, AND RESPONSIBILITY IN MAINTAINING IT", "NEED OF SPECIAL KNOWLEDGE; SOME FORMS OF AVOIDABLE DISEASE, THEIR REMEDY AND PREVENTION", and "LOVE; HEREDITY; ENGAGEMENTS".