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Periods 101 - Understanding Periods

Periods 101 - Understanding Periods
Written By
Dr. Akanksha Priya
2 min read
Updated: Feb 18, 2026
Follows PeriodSakhi Editorial Policy

Understanding Periods (Menstruation)

A simple educational guide to understanding menstruation and the menstrual cycle.

1. What Is a Period?

A period, also known as menstruation, is the monthly shedding of the  uterine lining (endometrium) when pregnancy does not occur. Blood and tissue leave the body through the vagina as part of the menstrual cycle. 

2. The Menstrual Cycle Explained

The menstrual cycle is the monthly hormonal process the body goes through to prepare for pregnancy.

  • Average Cycle Length: 21–35 days (28 days is common but not required).
  • Hormones Involved: Estrogen and progesterone regulate the cycle.
  • Ovulation: An egg is released from the ovary around the middle of the cycle.
  • If Pregnancy Does Not Occur: Hormone levels drop, and the uterine lining sheds (period).

3. When Do Periods Start and Stop?

  • First Period (Menarche): Usually between ages 9–15.
  • Regularity: Periods may be irregular during the first few years.
  • Menopause: Periods typically stop between ages 45–55.

4. How Long Does a Period Last?

  • Typical Duration: 3–7 days.
  • Light or Heavy Days: Flow may vary throughout the period.
  • Total Blood Loss: Usually about 30–80 milliliters per cycle.

5. Flow Types

  • Light: Minimal bleeding, may only require light protection.
  • Moderate: Steady bleeding requiring regular product changes.
  • Heavy: Heavier bleeding, may require frequent changes.

6. Common Symptoms

  • Abdominal cramps
  • Bloating
  • Breast tenderness
  • Headaches
  • Mood changes (PMS – Premenstrual Syndrome)
  • Acne
  • Fatigue
  • Lower back pain

7. Managing Symptoms

  • Light exercise (walking, stretching)
  • Heating pads for cramps
  • Balanced diet and hydration
  • Over-the-counter pain relief (if approved by a healthcare provider)
  • Getting enough rest

8. Menstrual Hygiene Products

  • Pads: Worn inside underwear to absorb flow.
  • Tampons: Inserted into the vagina to absorb blood.
  • Menstrual Cups: Reusable silicone cups that collect blood.
  • Period Underwear: Absorbent underwear designed for menstruation.
  • Reusable Cloth Pads: Washable and eco-friendly option.

9. When to See a Doctor

  • Periods lasting longer than 8 days
  • Severe pain that interferes with daily life
  • Very heavy bleeding (soaking through a pad/tampon every hour)
  • Missing periods (not pregnant)
  • Bleeding between periods

10. Important Notes

  • Periods are a normal and healthy part of reproductive health.
  • Every person’s cycle is different.
  • Tracking periods can help understand patterns and changes.

This information is for educational purposes only and is not a substitute for professional medical advice.

Dr. Akanksha Priya

About PeriodSakhi

PeriodSakhi is your trusted companion for understanding your menstrual health. With easy-to-use tools, it helps you track your periods, ovulation, fertility, moods, and symptoms, while providing insights into your overall reproductive and hormonal health. PeriodSakhi also serves as a supportive online community where women can share experiences, find reliable information, and access expert-backed guidance on menstrual health, PCOS, pregnancy, lifestyle, and more.

Disclaimer

The views, thoughts, and opinions expressed in this article/blog are solely those of the author and do not necessarily reflect the views of PeriodSakhi. Any omissions, errors, or inaccuracies are the responsibility of the author. PeriodSakhi assumes no liability or responsibility for any content presented. Always consult a qualified medical professional for specific advice related to menstrual health, fertility, pregnancy, or related conditions.

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