Period FAQs

what are the causes of light periods

by Margret Kemmer Published 2 years ago Updated 1 year ago
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Light Period Causes

  1. Hormonal Imbalance. A hormonal imbalance is actually the most common culprit for a light or scanty period. ...
  2. Excessive Physical Activities. Women who engage in rigorous physical activities, like athletes, are more likely to experience light menstrual flow due to a number of reasons: strict diet, low ...
  3. Persistent Endometritis. ...
  4. Sheehan’s Syndrome. ...

More items...

Body weight, exercise, and stress can all cause light periods, and knowing why can be helpful. Periods that are lighter than usual are not normally a cause for concern. People often find that their menstrual flow varies from month to month, and some months are simply lighter than others.

Full Answer

What can cause very light period which stops and starts?

This is why you might have lighter and heavier days. If some tissue temporarily blocks the flow out the cervix, it may result in light flow, followed by heavier flow when it passes. This may also create the start, stop, start again pattern. Generally, day-to-day variations in flow are considered normal if your period lasts around 3 to 7 days.

What causes your period to be shorter or lighter than normal?

Many factors can alter a person's menstrual flow and make their period unusually light. Body weight, exercise, and stress can all cause light periods and knowing why can be helpful. Lighter periods than normal do not usually cause concern.

What would be considered a light period?

You may be concerned about a light period if:

  • you bleed for fewer than two days
  • your bleeding is very light, like spotting
  • you miss one or more regular-flow periods
  • you experience more frequent light periods than the typical 21- to 35-day cycle

Why is my period extremely light?

“A very light period may be from ovulation not occurring in the first place, meaning the normal hormonal fluctuations of the menstrual cycle that tell the endometrium to build up and then release for a period are not present.” Instead, the endometrium builds up but then bleeds irregularly.

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How long does implantation bleeding last?

This can occur when a fertilized egg attaches to the lining of the uterus. Implantation bleeding usually lasts for two days or less. Learn more: Early pregnancy symptoms no one tells you about ».

What happens if you don't have an egg?

When your body doesn’t release an egg, your uterus doesn’t create a thick lining. This can result in lighter periods or skipped periods altogether.

How often do you get your period?

Overview. Understanding what’s “normal” for a period will help you determine whether your period is, in fact, light. A period comes when the lining of your uterus sheds through your cervix and vagina, generally on a monthly basis. Your period is generally consistent in number of days and the level of flow. Women typically get their period every 21 ...

Why does my period get irregular?

Being extremely underweight can cause your period to become irregular because your hormones are not working normally . Additionally, losing or gaining an extreme amount of weight can cause irregularities with your period.

What causes irregular periods?

Anorexia nervosa and bulimia are types of eating disorders that may cause irregular periods. Eating disorders can lead to low body weight, which can alter hormones that regulate your period.

What does it mean when you have no period?

A light period can be a sign that your body is not working as it should. You should talk to your doctor about what might be causing it. Women who experience no period for three months or longer may be diagnosed with amenorrhea. Read more: Menstrual problems ».

What is metformin used for?

It helps control insulin levels and may help to improve ovulation, which can regulate your menstrual cycle.

How much blood does a person with hypomenorrhea produce?

While most periods produce between 30 to 50 milliliters of blood, a person with hypomenorrhea makes substantially less than 30 milliliters per cycle, according to the book Clinical Methods: The History, Physical, and Laboratory Examinations. It’s pretty difficult to measure out your period in milliliters, but this is just a point of reference.

Why does my period lighten up?

Lina Akopians, M.D., Ph.D., a specialist in reproductive endocrinology at the Southern California Reproductive Center, says that a period that lightens up substantially could be caused by a hormonal issue or a structural one (meaning something happened to an organ in your body).

What is it called when the walls of the uterus stick to each other?

Most women who have gone through routine dilation and curettage (D&C) procedures heal with zero complications, but sometimes severe scarring causes the walls of the uterus to stick to each other, causing what’s known as Asherman’s syndrome.

Why does my cervix narrow?

A rare but uncomfortable problem, Dr. Akopians says this occurs when the cervix narrows or closes up completely. This may occur after previous surgery of the cervix or uterus, such as a LEEP procedure for an abnormal pap or an endometrial ablation for heavy menses. Cervical stenosis may also be due to low estrogen levels during perimenopause. As a result, blood stays trapped in the uterus or is only able to trickle out slowly. If you experience bad cramping, despite a light flow, talk to your doctor.

Why does my period feel shorter?

Fluctuating weight can mess with your menstrual cycle, making your periods a lot shorter or lighter. That’s because when you gain weight, storing more fat in your body can affect your hormone levels and throw them out of balance.

What happens if you lose blood during childbirth?

“This is a very rare condition,” says Dr. Akopians. Losing a lot of blood deprives your body of oxygen, which can end up damaging the pituitary gland and cause something called Sheehan’s syndrome.

What is cervical stenosis?

You have cervical stenosis. A rare but uncomfortable problem, Dr. Akopians says this occurs when the cervix narrows or closes up completely. This may occur after previous surgery of the cervix or uterus, such as a LEEP procedure for an abnormal pap or an endometrial ablation for heavy menses.

What other symptoms might occur with light periods?

Light periods may accompany other symptoms, which vary depending on the underlying disease, disorder or condition.

What is the amount of blood loss during a period?

The amount of blood lost during a menstrual period ranges from 20 to 80 milliliters (mL). Blood loss of less than 20 mL may be considered a light period. A shift or imbalance in hormone levels is the main cause of light periods. Light periods most commonly affect women who are approaching menopause because at that time in their lives women produce ...

How long does a light period last?

Each period typically lasts from four to seven days.

What to do if you have a light period?

If your light periods are persistent or cause you concern, seek prompt medical care.

Can you have a lighter period with oral contraceptives?

Women who use hormonal contraceptives, including oral contraceptives, may also experience lighter periods. Light periods are not the same as the complete absence of menstrual periods, medically known as amenorrhea. Seek immediate medical care (call 911) if you, or someone you are with, are pregnant and experience vaginal bleeding.

Why does my period lighten up?

Lina Akopians, M.D., Ph.D., a specialist in reproductive endocrinology at the Southern California Reproductive Center, says that a period that lightens up substantially could be caused by a hormonal issue or a structural one (meaning something happened to an organ in your body). That said, here are the top reasons that might explain why your flow ...

Why does my cervix stenosis happen?

This may occur after previous surgery of the cervix or uterus, such as a LEEP procedure for an abnormal pap or an endometrial ablation for heavy menses. Cervical stenosis may also be due to low estrogen levels during perimenopause. As a result, blood stays trapped in the uterus or is only able to trickle out slowly. If you experience bad cramping, despite a light flow, talk to your doctor.

Does weight affect your period?

Fluctuating weight can mess with your menstrual cycle, making your periods a lot shorter or lighter. That’s because when you gain weight, storing more fat in your body can affect your hormone levels and throw them out of balance. In a similar way, losing weight from restricting calories can put your body into stress mode and create an imbalance of hormones. Dr. Akopians notes that “your body needs a healthy balance between protein, carbohydrates, fats, and vitamins,” to keep operating normally.

Can a D&C cause a period to lighten up?

If your period seems to have lightened up a lot after you’ve had a D&C, this might be your problem. You may need surgery to remove the scar tissue.

Can thyroid problems cause a period?

Abnormally light periods and missing periods are also a symptom of hyperthyroidism. If you’re experiencing some of the other symptoms of an overactive thyroid, make an appointment to see your doctor.

What causes Light period negative pregnancy test?

Light period with negative pregnancy test may be due to other non-pregnancy reasons or pregnancy too . If your light period is due to implantation, pregnancy test done on the day of implantation will be negative and inaccurate. If your pregnancy test is negative and you have light spotting, then you should wait for a week and recheck again.

Why is my period light?

If you notice a very light period that is earlier than normal, it may be due to implantation bleeding. However, there are many other reasons for early period.

What does it mean when your period is light?

However, if your period blood loss is less than 20mls, then you have a very light period. A light period may mean there is a medical problem, pregnancy or unstable hormones.

How long after spotting can you get pregnant?

If you check for pregnancy days after light spotting, it may be negative due to low HCG levels. Best time to confirm pregnancy is a week after your period is late. 2. After your first period or years before menopause. If you are less than 20 years or more than 40 years, then its possible you may have very light periods sometimes.

What is PCOs in pregnancy?

What is PCOS? This is a common cause of infertility among women of childbearing age and occurs due to hormone imbalance.

Why is my period lighter than normal?

If you are just noticing a lighter than normal period this month then its possible due to pregnancy. Do you feel other pregnancy signs — nausea, getting tired easily and cramps?

What happens if you don't ovulate?

Ovulation is the release of an egg from the ovaries. If ovulation does not occur, the covering of your womb (endometrium) will be thin. This can come out like a light period in women.

Why is my period lighter than normal?

A lighter period than normal can be caused by many things, including pregnancy, stress, illness, and other things. Sometimes a woman will have spotting and think her period is about to start and not see any more bleeding. This can be implantation bleeding, which is the earliest sign of pregnancy, that is sometimes mistaken for a menstrual cycle.

What are the effects of menstrual cycle?

Emotional stress, such as the loss of a loved one, or major life stressors in work or your home life can take a toll on your body and affect your menstrual cycle. 1 

What to do if your period is unusual?

If your period seems unusual in any way, take a pregnancy test. Pregnancy is the most likely cause of something being different in your cycle, particularly if you have not been using birth control.

What is Asherman's syndrome?

Asherman's syndrome is caused by uterine scarring following a dilation and curettage procedure (D&C), in which tissues from the uterus are removed.

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Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

Does weight affect your period?

If you have experienced a sudden shift in weight, this can sometimes affect your menstrual cycle. Over-exercising can also affect your periods, especially when you put a lot of physical stress on the body.

Can you wait until your next period to get your results?

To get the best results, it might be best to wait until you miss your next period. This can be a home pregnancy test or a pregnancy test from your doctor, midwife, or health department. In most cases, you do not have to notify anyone of the test or the results. Even if you know you're pregnant, if you had a lighter-than-normal period, ...

Why does my period get irregular?

Your body fat percentage and body weight directly affect your period, and being extremely underweight can cause your period to become irregular because your hormones are not working normally. Dr. Lapa says: " Low body weight interferes with the production of hormones, which can lead to lighter menstrual periods."

How do you know if you're getting older?

Your age is more than just a number. It can also be a tell-tale sign for different changes happening in your body, including your menstrual cycle. As you approach your mid-30s to early 40s, your ovaries begin to show their age and one of these symptoms could be lighter than usual periods.

What is the condition where the ovaries become enlarged and contain many fluid-filled sacs which surround the egg?

JGI/Jamie GrillGetty Images. 5. You have PCOS. Polycystic Ovary Syndrome, or PCOS, is a fairly common condition in which ovaries become enlarged and contain many fluid-filled sacs which surround the egg. According to the NHS, 1 in 5 women in the UK have PCOS, however not all will show the symptoms.

What is a light period?

A light period is usually defined as losing less than 30 to 35mL blood during your period.

Can PCOs cause periods to be irregular?

Lapa says: "When you have polycystic ovaries, the imbalance of hormones can lead to irregular periods, including painful and heavy bleeds, shorter or lighter than usual periods." Some women with PCOS might not even experience periods at all.

Can stress cause light menstrual periods?

You're stressed. Stress is a normal part of a busy woman’s life, but it does take a toll on your body. Dr. Lapa explains: "Stress can block the release of hormones that are necessary for normal menstrual periods. When this hormone is blocked, light menstrual periods can occur.".

When do ovaries stop working?

Lapa says: "At this age you have fewer functional eggs, and subsequently you may have less estrogen. Your ovaries will officially stop working somewhere in your 50s - with the average age of menopause (defined as your very last period) is between 51 and 52 years old.".

Why are there bumps on my ovaries?

PCOS is named for the bumpy cysts covering the ovaries. Those cysts contain eggs that weren’t released due to hormonal imbalance. High levels of androgens (reproductive hormones that are usually higher in males) prevent ovulation.

Why is my period lighter?

Because hormonal methods of birth control (the pill, the patch, the ring) don’t let the uterine lining build up as much, periods are lighter. These are some other side effects of hormonal birth control: nausea. weight gain. sore breasts. mood changes.

When do women get their periods lighter?

Periods typically get lighter as a woman ages. They may be heavier in teen years and get lighter in your 20s and 30s. In their 40s, most women enter perimenopause and have shorter or lighter periods. During perimenopause, ovaries produce less estrogen and progesterone, and ovulation is less frequent.

What hormone is produced during ovulation?

While a woman breastfeeds, her body produces a hormone called prolactin. Prolactin suppresses ovulation and periods for several months or up to a year after childbirth. When periods do return, they may be irregular and shorter or lighter than you are used to, as long as you’re still breastfeeding.

What happens if you have a fertilized egg implant?

When a fertilized egg implants in the uterine wall, slight bleeding and cramping can occur. If you suspect pregnancy and your regular period is a no-show, take a home pregnancy test. If it’s negative but you still have weird symptoms and no flow, test again or follow up with your doctor.

What is the cause of FHA?

Stress may also cause functional hypothalamic amenorrhea (FHA), affecting about 17.4 million women worldwide. FHA disrupts interaction between the hypothalamus, pituitary gland, and ovaries. Suppression of several hormones in this system leads to low estrogen levels and prevents thickening of the uterine lining.

How to tell if your period is light?

Signs of a light period are: bleeding less than you normally do or less than the average 2 to 3 tablespoons. flow is light enough for a panty liner, or fewer pads and tampons than usual.

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