What Causes Less Bleeding During Periods

What is a “Light Period?”

Light period, also known as Hypomenorrhea, refers to a shorter menstrual cycle, where bleeding is much less than usual. The bleeding is much shorter than the usual cycle (it may last 2-3 days or less, and the pattern persists for several months).

If the blood flow is less, it doesn’t always mean that there is a problem. And, it is not uncommon for women to experience this once in their lifetime. However, sometimes, less bleeding can also indicate that there is something wrong with hormones. It may also indicate several underlying health conditions. So, when a woman experiences three consecutive lighter bleeding during menstruation, it is advised to see a healthcare professional.

Is it Normal to Have a Light Period?

How every body functions is different. So, how women bleed might also be different from others. Sometimes with lighter bleeding, the blood may also become darker. This happens because of oxidation. As the menstrual blood gets exposed to oxygen, it naturally changes its colour.

What Causes Light Bleeding During Periods?

As discussed earlier, less bleeding occurs when hormones in the body fluctuate. Other common causes may be:

• Hormonal Contraceptives

  This is one of the common causes of light periods. Pills, patches, the ring, hormonal IUDs, etc., all can thin the uterine lining. During a normal menstrual cycle, oestrogen thickens the lining. However, in case pregnancy does not occur, that thick lining sheds during the period.

  With continuous use of hormonal contraceptives, the uterine lining stays thin; this means there is less tissue to shed during menstruation. Thus, causing periods to become lighter. Some people may also find their menstruation to disappear completely.

• Could be a Sign of Pregnancy

  A light period is also a sign of pregnancy, which is also called implantation bleeding. This usually occurs when a fertilised egg attaches itself to the uterine lining. Sometimes, it could also mean ectopic pregnancy, where the egg implants itself outside the uterine lining. This is considered dangerous; hence, it is advised to see a medical healthcare provider at the earliest.

  Also, light bleeding can be a sign of miscarriage (loss of pregnancy) or an anembryonic pregnancy (when a fertilised egg attaches itself to the uterus, but does not transform into an embryo).

• Stress

  Stress is an enemy of a healthy body and mind. It can affect several things in the body and can also cause a lighter period or cause it to stop altogether (temporarily). When the body is stressed, it releases a steroid hormone called cortisol, which is also called the stress hormone.

  Too much cortisol can affect the body’s ability to release gonadotropin-releasing hormone (GnRH). When the release of GnRH is disturbed, the body may not be able to produce oestrogen and progesterone properly. This can cause irregularities in the menstrual cycles. Severe stress can also cause amenorrhea (the period may stop altogether).

• Extreme Weight Loss

  The body needs a certain amount of fat and calories to produce estrogen and progesterone. But, due to weight loss, the body doesn’t get what it needs. As a result, this can suppress the reproductive hormones. As the body sheds weight, it triggers the cortisol or GnRH process, which can alter the bleeding pattern and may even cause the person not to ovulate.

  It is best to increase the intake of calories to help the body come back to proper functioning. However, this might be difficult if a person is dealing with an eating disorder or body dysmorphia.

• Asherman’s Syndrome (Uterine Scarring)

  If a person has undergone uterine procedures, such as D&C, a cesarean section, or surgery to remove scar tissue, fibroids, etc., they may experience light bleeding. This condition is called Asherman’s Syndrome. This occurs when the deep layer of the uterine lining is damaged during a surgery.

  The scar tissue, as a result of surgery, takes up space inside the lining, which does not allow it to grow normally. In mild cases, it can cause a lighter period. However, in severe cases, the pathway may be blocked by scar tissue, which does not let the blood flow out.

• Overactive Thyroid

  An overactive thyroid, also known as hyperthyroidism, occurs when the body produces too many thyroid hormones. This can cause severe heart issues, in addition to high blood pressure, muscle problems, etc. Overactive thyroid is also a cause for light bleeding or missed periods.

• Early Menopause

  Sometimes, with ageing, the cycle changes and the number of egg-containing follicles may also start to decline. This reduces estrogen production and leads to fewer ovulations. Some may experience heavy flow around the menopause phase, while some may have lighter bleeding. The pattern may vary, which means that in one month, the bleeding might be light, whereas in the next one, a person may experience heavy bleeding.

How to Identify Lighter Bleeding?

Some of the common signs of light bleeding include -

• Low blood volume (menstrual flow less than 30 ml per cycle)
• Shorter duration (lasting for only 1-2 days)
• Pale or watery flow (blood may appear light pink or brown)
• Mild or no cramps (reduced prostaglandin release can cause no pelvic pain)
• Irregular or unpredictable timing

When to See a Healthcare Provider?

A single light period is not a concern, as the cycle may vary depending on the body's condition. Certain factors, such as travel, heavy workload, sleep disruption, etc., can impact the flow. They must see a healthcare provider.

• If a person experiences more than 3 consecutive lighter periods
• They bleed only for 2 days or less
• Irregular menstrual cycle
• Experience symptoms such as fatigue, weight loss, pain during intercourse, etc.

Lighter bleeding, if caused by certain underlying health conditions, can be dangerous. So, seek medical attention as soon as possible to limit the damage to the body.

Conclusion

Though the menstrual cycle may vary from person to person, it is important to understand what the body is experiencing. Sometimes bleeding can be light or heavy depending on the body's situation; learning about the possible causes gives a better understanding of whether the reason is normal or may need medical attention. If the period becomes persistently lighter or irregular, it is best to seek medical advice to identify the cause.