Dr robin edwards, obstetrician and gynaecologist, singapore

Understanding Menstrual Cycles: Regularities, Irregularities, and Management

8/8/20251 min read

woman meditating on wooden dock during daytime
woman meditating on wooden dock during daytime

What is an average menstrual period like?

An average menstrual period typically lasts between three to seven days, with most women experiencing a cycle of about 28 days. This cycle includes the shedding of the uterine lining when pregnancy does not occur. The flow is usually heaviest during the first two days and then gradually lessens. While menstrual patterns differ among women, understanding the average can help in identifying irregularities.

How are periods regulated?

The regularity of menstrual cycles is primarily influenced by hormonal balance in the body. The hypothalamus, pituitary gland, and ovaries work together to produce hormones like estrogen and progesterone, which govern the menstrual cycle. When these hormones are in sync, periods occur in a predictable pattern. Factors such as age, health, and lifestyle choices contribute to this regularity, allowing many women to anticipate their cycles consistently.

What are the causes of irregular menstrual cycles?

Irregular menstrual cycles can arise from various factors. Common causes include hormonal imbalances, weight fluctuations, stress, and underlying health conditions such as polycystic ovary syndrome (PCOS) or thyroid disorders. Medications like birth control pills or certain antidepressants may also contribute to changes in menstrual regularity. A significant life change, including extreme physical exertion or significant weight loss, can further disrupt the cycle.

How to manage irregular periods

Managing irregular periods requires a multi-faceted approach. Firstly, it is essential to maintain a healthy diet and regular exercise, as these factors can help stabilise hormones. Additionally, tracking your menstrual cycle using apps or calendars allows for identification of patterns and irregularities. If periods remain inconsistent, it is advisable to consult with a gynaecologist. They may recommend lifestyle adjustments or medications to regulate your cycle, depending on the underlying causes.

Understanding what an average menstrual period encompasses and the factors that contribute to regularity is crucial for women's health. Awareness of potential causes of irregularity can empower individuals to take necessary actions for management and seek professional advice when needed.