Climacterium is a condition of most of women who have hypofunction of ovary, decrease of female hormone, and physical and mental changes or symptoms in their late 40s. The period when such phenomena appear after menopause is called climacterium. The average age of menopause is 50-52 and the actual age of menopause ranges from about 48 to 55. Not that early period brings early menopause; but being slim or smoking might lead to early menopause because body fat has influence on generation of estrogen. Also a history of hysterectomy can cause dysfunction of vascular system in ovary and finally ovarian deficiency symptom. A set of physical, mental symptoms are called climacteric symptoms. To control the health condition by exercise or diet is important during climacterium. In particular, hormone replacement therapy can be one of good methods since it supplements inefficient hormone, removes climacteric symptoms and prevent osteoporosis and heart diseases. Some women do not try the treatment or quit due to wrong medical information or fears about breast cancer while almost every woman are satisfied with the treatment. It is important to trust ob/gyn doctors, receive consultations and treatment for climacterium, and achieve healthy and energetic life.