Future Health Frontiers Q&A Women’s Health Postpartum Recovery

What happens if menstruation does not come again after menstruation resumes after childbirth?

Asked by:Gail

Asked on:Apr 13, 2026 12:19 PM

Answers:1 Views:572
  • Folkvangr Folkvangr

    Apr 13, 2026

    This situation is mostly a normal physiological phenomenon caused by hormonal fluctuations during lactation. However, the possibility of another pregnancy, endocrine disorder or even organic disease of the reproductive system does not rule out the possibility. There is no need to be overly anxious, but it cannot be taken completely seriously.

    A while ago, I accompanied Sister Li, the mother downstairs, to the community hospital for a check-up. She was just 7 months old after giving birth to her second child. She had her first postpartum menstruation last month. She even complained that she had to wait for her "aunt" again just six months after she was clean. However, she didn't come for 20 days this month. She took three pregnancy tests at home and all were negative. She was still scared to death, fearing that she might have some gynecological disease. The doctor asked her to find out that she was still mixed-feeding. She had to get up every night to feed her baby two night feeds. Recently, she had to stay up until past twelve o'clock to help her eldest daughter with her homework. He sent her home without even asking for additional examinations. He said that this situation was too common and that many mothers had inaccurate menstruation in the first year after giving birth.

    To put it bluntly, prolactin, which is responsible for lactation after childbirth, is still at a high level, which will inhibit ovarian ovulation to a certain extent. In the first few times when menstruation has just resumed, the ovaries have not yet returned to the regular ovulation rhythm before pregnancy. Just like an experienced driver who has not touched a car for a long time, it is inevitable that there will be times when the rhythm is out of order. As long as you are still breastfeeding, especially mothers who frequently feed at night and do not rest well, hormone fluctuations are already large, and menstruation once every two or three months is considered normal.

    There are two different opinions on this situation. One is that as long as you are still breastfeeding, you don’t need to worry about irregular menstruation, and it will naturally return to regularity after weaning. The other is that as long as menstruation is delayed for more than a week, you must seek medical examination immediately. In fact, both opinions are a bit extreme. How to deal with it depends on your own situation.

    When I went to the obstetrics department to deliver information to a friend, I met a mother of her second child. She had her period nine months after giving birth and then had no movement for almost three months. She thought it was a normal reaction to breastfeeding and didn’t even check. Later, she went to the hospital because of stomach pain. After a checkup, she found out that she was 12 weeks pregnant. She didn’t notice it at all, and even thought that the occasional nausea was due to the tiredness of raising a baby. This situation is really not an exception. After all, many people have resumed ovulation before their first menstruation. As long as the intercourse does not use contraception, pregnancy is possible regardless of irregular menstruation. Therefore, the first thing to do when menstruation is delayed is to rule out the possibility of pregnancy. Don’t be too troublesome.

    If you have been weaned for more than 3 months, but your periods still come and go, and are accompanied by severe hair loss, repeated acne breakouts on the cheeks and jawline, and an inexplicable weight gain of more than ten kilograms, then there is a high probability that there is an endocrine problem, such as postpartum thyroid dysfunction or polycystic ovary syndrome. A blood test to check six hormones and thyroid function will make it clear. It is not a big problem, and you can basically recover after a period of conditioning. If you have experienced postpartum uterine evacuation or heavy bleeding before, and your first menstrual period is very light, and you still feel pain in your lower abdomen from time to time, and then you simply stop menstruating, then it is best to do a B-ultrasound to see if there is intrauterine adhesions. In this case, don't wait for weaning. Early intervention and recovery will be much better.

    In fact, the delayed menstruation encountered by most mothers after childbirth is due to hormone fluctuations. Don't buy menstruation pills randomly, and don't scare yourself by reading online posts every day. Take an early pregnancy test first. If you are not pregnant and don't feel uncomfortable, you should eat and sleep. If you really feel uneasy, go to the hospital for a routine gynecological examination. It doesn't cost much and doesn't cost much. It's much better than trying to figure it out at home.