In most cases, getting a period twice a month has a simple explanation. If it happens repeatedly, however, it’s important to take notice of any signs and symptoms. Read on to learn why two periods may happen in the same month.
Two periods in one month for the first time
People with short menstrual cycles frequently have periods at the beginning and the end of a month. For someone with a typical menstrual cycle — usually about 28 days or so — having a period twice a month may be a bit surprising and seem unusual. It’s important to remember that irregular bleeding can indicate a medical concern, and it’s easy to mistake for a period. In some cases, bleeding could indicate one of the following:
- Pregnancy (uterine or extrauterine) — Since vaginal bleeding can occur during pregnancy, it’s important to talk to a health care provider if there’s a chance of pregnancy.
- A sexually transmitted infection (STI) — STIs can cause light bleeding or spotting as well as abnormal vaginal discharge.
- Miscarriage — Miscarriages are often accompanied by heavy vaginal bleeding. It’s important to visit a health care provider immediately if vaginal bleeding occurs during pregnancy.
- Hormones — Hormonal imbalance or problems with ovulation caused by thyroid dysfunction, hyperprolactinemia, and polycystic ovary syndrome can cause irregular vaginal bleeding.
- Weight — Stress, too much exercise, and weight changes can cause two periods in one month.