In recent years yoga has experienced a global boom. More than 80% of the population is said to be women. Yoga is a material that is indispensable in understanding the women who live in modern society. Most notably, in women-only yoga studios and lessons with the aim of female sexual function improvement, the focus of yoga has actively centered on the woman's body. In this study, we use participant observation and interviews to examine the way yoga advertises improvement in female sexual function, and considered a new dimension of politics on the appearance of the female body.First, we looked at how a space for women only has been created. The yoga teacher opened a yoga class for pregnant women as she wanted to teach what she had experienced as a woman. Then women with infertility cameto the place.Second, we examined how the ideal female body is defined in yoga. This is a body where "sexual function that supports the health and beauty, youth as a woman" works like "normal". This way refer to the body's ability to achieve pregnancy or childbirth, healthy menstruation, the sex hormones that are secreted normally, which is important when there is a sexual relationship with a partner. Moreover, along with the focus on physical health, inorder to proactively live a positive diverse life, spiritual growth is also emphasized.Third, we considered how methods for realizing female body image and the image of the ideal are understood or practiced. They advise dietary such as brown rice. But in reality they compromise and concession instead of keeping it perfectly.Fourth, we asked whether these practices can be evaluated from the point of view of women's empowerment, self-determination and liberation. Although the parties living with stigma of infertility tend to have lower selfevaluation,they were able to have an experience in the classroom that is life-affirming.