How Long After PMS Does Period Start (And Why)?

Exact Answer: 21 Days

Periods are a painful phase that every girl goes through. There is an end number of changes that take place in the female body during this phase externally as well as internally. It is a natural process of growth in every female body. During periods there are a lot of difficulties a woman faces, but it is not only you face pain and uncomfortable during the periods. Some women face way more difficulties in their prior period’s phase and that is PMS.

PMS known as premenstrual syndrome is a series of symptoms that is usually experienced by women between the period of their ovulation and periods. The symptoms of PMS can be annoying, distracting, and sometimes painful. Or in simpler words, pre-period symptoms that lead to mental, physical, and hormonal disbalance of one’s body are known to be PMS.

How Long After Pms Does Period Start?

ObjectiveNumber of Days
Pms In Adults1-2 Weeks Before Periods
Pms In Teenagers2-3 Weeks Before Periods

The period is a natural part of a female’s life, and to bear the menstrual pain is harder. PMS is not a disease that the effects would be the same for all age groups. It is just a set of multiple symptoms which some females experience as a sign that their periods are on the way. It is a very common syndrome that happens to every 3 out of 5 women. According to a survey, women over 90% stated that they experience a variety of premenstrual symptoms, such as bloating, headaches, and moodiness, etc, which gives them an indication that they are going to have their periods soon. In common words, it can be conveyed as pre-period symptoms.

The cause of PMS is not known nor is it fully researched or known either but likely involves hormonal changes that happen in the body during menstruation. PMS includes a group of changes that may affect you on many levels. It could be physically, emotionally, or behaviorally. The changes come 1-2 weeks before periods. Once your period starts or soon after it starts, it will go away.

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The premenstrual syndrome occurs 7-14 days before periods. The reason behind the PMS is yet undiscovered, however, many researchers have shown in their researches that it happens when sex hormones and serotonin level changes at the beginning of the mensuration phase in women’s. Pms differ according to the age groups and the mental and physical conditions of the female. Health is also a very imperative factor which indeed can not be ignored if someone is suffering from difficulties in their menstrual flow.

Why Does It Take So Long To Start Period After Pms?

The cause of PMS is not fully understood yet. But, there is certainly an adequate reason which describes why PMS happens. According to the researchers, when women’s are not in their pregnancy phase, the estrogen and progesterone level falls incessantly, PMS happens at that time.

PMS is usually experienced by 5-12 days in adults. The symptoms which a female is likely to have are sadness, cramps, mood swings, fatigue ness, food cravings, etc. Some women manage the PMS shifts as they don’t feel any unbearable pain. However, some women experience more severe premenstrual symptoms that can lead to huge hormonal imbalances in their bodies

However, if a female is suffering from any mental trauma, stress, pressure, or hormonal disbalance then this duration might increase or decrease. In teenagers, PMS is more likely to arrive early because of hormonal fluctuations. Teenagers struggle with the regular highs and lows of being a teenager as well as there are a lot of hormonal fluctuations that go along with their menstrual periods. As many as 3 out of 4 deals with premenstrual syndrome or PMS. This is the reason for early PMS in teenagers which can be up to 2-3 weeks before periods.

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Chemical hormones are one of the reasons which bring a lot of unpleasant periods, signs, and symptoms together. Doctors say that the brain chemicals are also involved in PMS, but what is the exact extent is not cleared yet. Period signs generally vanish after 3-4 days of periods. As earlier mentioned, there are so many symptoms or signs that one’s period is likely to approach. The inclination in the level of the hormone starts again as soon as periods begin, because of that PMS fades off.

Many women experience not many affective effects of PMS, but for some women, it becomes a very severe syndrome which gives loads of irritation and unbearable pain sometimes that constrain them to do their regular activities. If someone is experiencing severe PMS symptoms then they should immediately consult their doctors as it could be a sign of premenstrual dysphoric disorder (PMDD).


Premenstrual syndrome is not a disease that can be cured, it is a syndrome that a majority of women possess. It is painful and problematic at the same time, but the only way to lessen its effect is to take proper care of yourself and to consume a healthy diet. For some women, PMS is a minor irritation. For others, it is downright debilitating. PMS goes away when a female has attained the phase of menopause, i.e she is no longer having her periods.

Until and unless if one can’t bear the pain of certain cramps and pains which occur during PMS then good care of oneself is much imperative. There are certain medicines as well which can surely reduce one’s pain from PMS. But, the best therapy suggested by the doctors is to keep your body and mind healthy. The healthier you are, the less the effect of PMS will be.



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