If there is blood on the pessary, it may be because the patient is not skilled enough to insert the pessary vaginally or the action is rough, which may cause damage to the mucous membrane of the vaginal wall, resulting in a small amount of vaginal bleeding; it may also be because the woman’s nails are long and the nails touch the mucous membrane of the vaginal wall during the pessary, which may also result in a small amount of vaginal bleeding. Therefore, it is recommended to trim the nails while using the pessary and pay attention to gentle movements to avoid this situation. In addition, some women may have allergic reactions to the pessary and may have blood after using the pessary.