Some women are fortunate to have shorter menstrual cycles regularly, resulting in one period at the start of the month and the next near the end. In this case, you only get brief menstrual periods and have nothing to worry about.
Some of the reasons why some women have two periods in one month are as follows.
Endometriosis, a disorder in which uterine lining tissue grows in places other than the uterus, might cause your period to occur twice a month (besides the inside of the uterus). This tissue can disrupt periods, induce pain, and produce excessive bleeding.
Some pregnant women suffer irregular bleeding, which may be confused with your period.
If you are sexually active, have two monthly periods, and suspect you are pregnant, the best thing you can do is obtain a pregnancy test, especially if you experience lower abdomen pain that seems to be menstrual cramps.
3. Fibroid uterine fibroids
Uterine fibroids are noncancerous growths that can form inside the uterus at any time.
Although the majority of uterine fibroids are harmless, their presence in the uterus may cause difficulties. Uterine fibroids can cause heavy menstrual bleeding. If you confuse this bleeding with your monthly cycle, you may believe you had two menstrual periods in one month.
Anxiety could also be the blame for your bimonthly menstruation.
Stress hormones that alter reproductive hormones can induce menstrual irregularities. Cortisol is an important hormone that can disrupt the hormonal balance required for a normal menstrual cycle and blood flow.
5. Polycystic Ovary Syndrome (PCOS).
Polycystic ovarian syndrome (PCOS), a disorder characterized by an imbalance of reproductive hormones, can also cause period issues.
Due to hormonal imbalances that interfere with ovulation, some persons with PCOS may have many periods in a month.