delayed first menstruation has not ruled out pregnancy.
reasons for the delay a vacation , delayed menstruation
caused by psychological factors: if the sudden appearance of psychological stress, anger, sadness, angry, lovelorn and abnormal emotions, often lead to delayed menstruation. Under such circumstances, often breast pain, upset, depressed uncomfortable. This situation usually does not require treatment, but sometimes the period has been delayed, you can take medicine for conditioning .2 syndrome, certain medications cause menstrual delay: Some drugs have side effects, often lead to delayed menstruation, for example, long-term use of contraceptives
taking emergency contraception, gastric motility drug domperidone, the drug treatment of hyperthyroidism, medicine TWP, etc. which is characterized by taking these drugs are often normal menstrual cycle before, after taking it to postpone, if taking a very short time , often stop after taking it back to normal, if taken too long, often require drug treatment. 3, leading to chronic diseases, delayed menstruation: a number of chronic wasting
disease, often due to delayed menstruation
caused by nutritional deficiency, a common chronic hepatitis, tuberculosis , cancer, thyroid
dysfunction, severe iron deficiency anemia, aplastic anemia, menstruation is often delayed. these diseases often have obvious symptoms, generally able to find an exception, not easily misdiagnosed. in the event of the disease, as soon as possible treatment of primary disease, cure disease after primary natural recovery
.4 menstruation, excessive weight loss leading to delayed menstruation: In real life, there are a lot of women to control weight, taking some medications or excessive dieting to lose weight, delayed menstruation, which case, if time is short you can return to normal natural menstrual cycle, but for the time more elderly, often before the need for drug treatment to restore normal menstrual cycle.