Many people know that women have menopause and know something about female menopausal syndrome, but most people rarely know that men also have menopause and that men also have menopausal syndrome, but even if they know about male menopause, they know very little about it. In fact, the incidence of male menopause syndrome is very high, and patients who experience male menopause syndrome can even bring many adverse effects on the functions of multiple organs and systems of the body, and their physical and mental health can be greatly harmed, seriously affecting their work, life, emotions and families. However, the clinical symptoms of male menopause syndrome are not very specific and are often overshadowed by the symptoms of other systemic diseases such as internal medicine and orthopedics, and are therefore overlooked by the patient or even by the clinician. The reason for this is the low level of knowledge and awareness of male menopausal syndrome in society and people. Werner first introduced the concept of maleclimacteric menopause in 1939, and nowadays, modern medicine mostly refers to male menopause syndrome as “late onset hypogonadisminmales” (LOH). ) . Current medical research indicates that the onset of menopause in men is mostly associated with a decrease in testosterone (T), especially free testosterone (FT). Male menopause syndrome is a clinical syndrome that occurs at a specific time in the life course of middle-aged and older men, usually in the age range of 40-55 years, but can occur as early as 35 years or as late as 65 years or more, depending on individual differences. The decline in serum testosterone in men usually begins around the age of 40 years, and foreign studies in men aged 40-79 years have shown that free testosterone (FT) decreases by 3.12 pmol/L per year associated with ageing. The prevalence of LOH in Chinese men increased with age, with 13%, 30% and 47% in the 40-, 50- and 70-year-old groups, respectively. In particular, it should be noted that some middle-aged and elderly men with sex hormone levels (T and FT) well within the normal range were found in the study, but the clinical symptoms of male menopause syndrome were very pronounced, possibly because the androgen levels of this group of patients, although within the current laboratory normal range, were actually significantly lower than the androgen levels of their younger years. Therefore, the clinical diagnosis of LOH should not be based on whether the laboratory androgen levels are lowered, but rather on the clinical symptoms and manifestations. In April 2009, the results of a survey conducted by the Institute of Science and Technology of the National Population and Family Planning Commission showed that men over 40 years of age are the most prevalent group of men with menopausal syndrome (LOH); more than 40% of middle-aged and older men have LOH. The prevalence of LOH among men aged 40-49 is 19%; between 50-59 years old, it rises to 38%; and between 60-69 years old, it is as high as 56%. The statistical results of this survey show that: First, the awareness of LOH 256 people (22.6%) reported that they had heard of LOH, but only 80 people (7.1%) could list more than one main feature of LOH and more than one risk factor, and 78 people (6.9%) answered that they knew about testosterone undecanoate supplementation therapy. Second, the degree of interest in knowing the knowledge of LOH 302 people (26.6%) of the respondents were not interested in knowing the knowledge of LOH, 211 people (33.7%) in the older group were not interested in knowing the knowledge of LOH, 72 people (14.8%) in the older group; 167 people (34.9%) in the group below junior high school were not interested in knowing the knowledge of LOH, and the group above high school were 135 people (20.6%). Third, the way to learn and understand LOH knowledge Younger adult men prefer to choose the network of communication introduction, older people prefer to get the help of medical personnel, radio and television, newspapers and magazines; lower education respondents tend to choose radio and television, newspapers and magazines to understand the knowledge of LOH, while those with higher education prefer medical personnel and the network way. Fourth, the attitude towards LOH treatment 213 respondents (18.8%) said that when they have symptoms of LOH, they will not take the initiative to deal with it; 265 respondents said they have never considered the treatment of LOH, which is more obvious in the older group and the group below junior high school. Respondents with lower education tend to choose health care products and pharmacies, while those with higher education prefer medical advice and adjustment of diet and exercise to deal with LOH. The above survey statistics show that there are many deficiencies and problems in the understanding of reproductive health among Chinese citizens, and they are obviously related to the degree of social and public publicity and education, while the reproductive health education (sex knowledge education) of middle and old people in China The public awareness of menopause syndrome (male hypogonadism) in middle and old age is obviously lagging behind. In 1998, the United Nations predicted that by 2050, for the first time, the proportion of people over 60 years of age will exceed the proportion of children under 15 years of age, and the next 25 years will also be a period when the aging of China’s population will become increasingly prominent. As a result, geriatric diseases are increasingly being taken seriously by clinical workers at home and abroad, and the health and quality of life issues of middle-aged and elderly men are drawing increasing social attention. In recent years, the study of male menopausal syndrome has also received increasing attention from various medical, psychological, sociological and policy makers, and has become one of the hot areas of research. The modern medical level and the understanding of LOH allow us to provide a comprehensive treatment program for male LOH patients, which can improve the treatment effect of middle-aged and elderly men who are already suffering from the disease, especially those who have obvious hypogonadism symptoms and those who have various disease states combined with hypogonadism symptoms, and can improve the quality of life of middle-aged and elderly men The treatment effect will be greatly improved, enabling middle-aged and elderly men to improve their quality of life and live happier.