Mochida Pharmaceutical Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President and CEO: Naoyuki Mochida; hereinafter referred to as Mochida Pharmaceutical) is engaged in the awareness campaign "Watashi no Karada Project" (My Body Project) aimed at improving literacy regarding menstrual concerns in children, raising awareness of related diseases, and reducing the psychological hurdles to visiting a gynecologist, particularly for "difficult-to-see and difficult-to-discuss" issues. Within this initiative, a survey on menstruation conducted by Mochida Pharmaceutical (Note 1) revealed that "family" is the most common recipient of consultations for menstrual concerns among teenage girls. This led us to believe that mothers play a particularly crucial role as a trusted confidante for children seeking accurate knowledge and coping strategies regarding menstruation. Based on this background, we conducted a survey (Note 2) targeting teenage girls and mothers of children from junior high school to university age, focusing on the reality of menstrual concerns among teenagers and parent-child communication about menstruation. Supervision: Dr. Kanako Inaba, Director, Inaba Clinic (Obstetrician and Gynecologist) Note 1: "Survey on Awareness and Reality of Menstruation 1" Conducted: September 2025; Survey Method: Internet survey; Target Audience: 3,000 women aged 16-49 with concerns about menstruation or menopause, with responses from 400 individuals aged 16-19 excerpted. Note 2: "Survey on Awareness and Reality of Menstruation 2" Conducted: March 2026; Survey Method: Internet survey; Target Audience: 2,885 women aged 16-59 with concerns about menstruation or menopause, with responses from 412 individuals aged 16-19 and 793 parents of daughters in junior high school, high school, or university excerpted. * Percentages may not sum to 100% due to rounding of decimals below the second place. * In this survey, menstruation is referred to as "seiri" (menstruation). ■ Key Survey Findings