3 Day Period Explained: Is it Normal or Not?

The menstrual cycle is not same for every woman for some may have a longer cycle while others may have a short one. Similarly, 3 day period is also not uncommon. Generally, on average, the period lasts for 5 to 7 days in a cycle of 28 days. But some woman due to different reasons has periods only for short duration of time. The woman often starts worrying if their periods only last for 3 days. Well, although having 3 day period should not be of concern but after having routinely 7 day period, a sudden change in periods may get you worried.

So here is the complete guide to 2 day period, reasons behind it and is 3 day period normal or not.

What is Mensturation?

Menstruation in scientific language is the monthly shedding of the lining of a woman’s uterus. It is commonly called by different terms as menses, menstrual period, cycle, or just period. The menstrual blood flows from the uterus through the cervix and goes out of the body through the vagina.

What is Normal Menstrual Cycle?

The menstrual cycle is termed as normal when all the sequence of events occur within a woman’s body as it prepares for the possibility of being pregnant each month. A menstrual cycle begins on the first day of a period and the average cycle continues for 28 days long. However, some woman experience just 3 days period instead of 7 days period. It is normal as far as you menstruate regularly for 3 days which is just your pattern. It simply means that after every few weeks, ovulation occurs and ovary releases the egg.

There are many concerns behind the 3 or 2 day period that one must know for health reasons can be at stake. Read on to know more.

Is it Normal to have a 3 Day Period?

Well, if you have a 3 day period then here is the good news for you. Yes, you read it right for a 3 day period is completely normal. It is true that periods need to continue for at least 5 or 7 days longer but if you have a shorter period then it is because your body is meant for lighter periods. Many women do dream about having shorter periods to experience fewer cramps and pain. But if you usually have a routinely normal period but all of sudden are suffering from a shorter period of 2-3 days then it is definitely a concern.

In this case of irregular periods, you need to concern your doctor or gynaecologist for having some test and to know if there is something serious.

What are the Causes of 3 Day Period?

In case you are the one suffering from 3 day period then here are some of the common causes that you can work on.

McClintock effect

McClintock effect says that living or spending time with other women makes your menstrual cycles sync with each other. In this case, there are a lot of chances that your period cycle may start matching their cycle. If it happens, it is nothing wrong and to be worried about it.

Changes in Estrogen

The level of estrogen in the woman’s body changes with the age. Estrogen is responsible for shedding the lining of uterus every month in the form of periods. Due to insufficient estrogen, then there are changes in the number of days your period last or you may have no periods at all. This is commonly seen in case of young girls during puberty phase, women who work out too much or older women reaching menopause. Such issues can result in three day period.

Birth Control Pills

Your 3 day period may be due to taking birth control pills making your periods shorter and lighter. Birth control pills take charge of your periods and start regulating it. Your menstrual period will get stable in a few months. Also, hormonal contraceptives do not let fertilization and ovulation occur hence slow down or delay the periods.

Medical Issue

If you have a disease or medical condition, then hormonal changes may not let you have a normal period. In addition, the medication prescribed for the illness can also make changes in menstrual cycle.

Extreme Stress

During stress, the body produces cortisol and adrenaline that inhibit the production of estrogen. This, in turn, changes how long your period lasts. You might also miss your period completely. This is one of the most common reasons for having a 3 day period.

Being overweight or underweight

Having required and healthy weight is very important as it can be the reason behind irregular menstruation or short periods. If you are overweight then your body produces high estrogen, on the contrary, if you are skinny, you don’t have sufficient estrogen to keep your menstrual cycle going in a timely manner.

Eating Disorder

Anorexia and bulimia cause eating disorders and such women suffer from inconsistent, irregular menstruation and even very short periods. This will result in a three day period if you tend to have longer ones normally. You can counter this by taking a balanced diet and keeping yourself healthy.

Strenuous exercise

When you do a too much physical activity, vigorous exercise, or intense training sessions, the body considers it as stress. This results in the short or irregular period.

Other reasons

Other reasons for suddenly having short periods can be Polycystic Ovary Syndrome (PCOS), Thyroid dysfunction, Premature Ovarian Failure and ovarian cysts. You need to remain alert about it and consult your doctor regarding such medical conditions which might require immediate medical attention.

Are you Pregnant?

No doubt, it is true that if you skip your periods it may happen that you are pregnant, but one of the earliest signs of pregnancy is bleeding. Although many women mistake it for being periods. This is because when the fertilized egg makes space for itself, the uterus sheds a bit of its lining resulting in a bleeding. This spotting is similar to a period which is little lighter lasting for one or 2 days.

But you should not take a decision by yourself rather it is time when you need to consult your doctor. It may be a real pregnancy or just a false sign.

When to Visit Gynecologist If You Experience a Short 3 day Period?

It is common to have a menstrual cycle that is a little “off.” Or short. This may be because of you dealing with stress, overcoming an injury, or medical issue. But if your period continues to be of 3 days when you used to have longer ones, it’s time you visit a doctor. In this case, you need to keep track of your periods whether they are heavy and for how many days they last, to give your doctor correct scene.

If you have one to three day bleeding around the date when your period is due, then there are chances of getting period. You should for sure visit gynaecologists to confirm your


There is nothing wrong having a menstrual cycle that is a little odd. The injury, immense stress or a medical condition can be the cause of your 3 day period. Well, 3 day period is usually nothing to worry about. But to get away with your doubt of having irregular menstrual cycle it is better to visit a doctor if menstrual irregularities become a routine thing.

Lakshya Dharamdasani

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