41 days without menstruation test paper a bar can not be completely excluded from pregnancy, and also considered to be mental stress, lack of sleep and other physiological factors, but also due to polycystic ovary syndrome, uterine cavity adhesion and other diseases. 1. physiological factors: 41 days without menstruation test paper a bar of the case, you need to consult a blood test human chorionic gonadotropin levels, so as to clarify whether the pregnancy. Usually the patient belongs to the state of long-term mental stress or poor living habits, often stay up late, resulting in sleep deprivation, can trigger endocrine disorders, which may occur 41 days without menstruation test paper a bar situation, is a normal physiological phenomenon. 2. Polycystic ovary syndrome: the cause of the disease is still unclear, mostly due to genetic, environmental and other factors together. Patients often appear menstrual sparse, low menstrual flow or amenorrhea, can also appear 41 days without menstruation test paper a bar phenomenon. And some patients may also manifest acne, hairiness, infertility and so on. 3. Uterine cavity adhesion: the pathogenesis is not clear, and it is mostly considered to be related to low estrogen level, congenital malformation, heredity, endometrial trauma and other factors. Patients often appear menstruation, or even amenorrhea, and can also be accompanied by cyclical abdominal pain, some patients can also be manifested as 41 days without menstruation test paper a bar. It is recommended that the patient 41 days without menstruation test paper a bar, timely exclude physiological factors, if it is due to disease, but also need to take targeted treatment.