What Is an Irregular Period?

What Is an Irregular Period?

Irregular periods can be frustrating, as no one likes to be surprised by their period.

While birth control can help regulate periods and cycles, it’s not a solution for all women.

Alternative solutions to regulate cycles are far and few. Proof period underwear provides everyday comfort and protection, so you can feel confident and secure for irregular period days.

With leakproof protection you can go about your day worry-free, without letting your period get in the way.

While they may not cure other period symptoms, they can provide peace of mind. So, if you have an irregular period, here’s what you should know. 

Defining Irregular Periods

There are a few ways to identify an irregular period, let’s review. 

  • Variation in cycle length: The average cycle length for a woman is 28 days, with cycle day 1 being the first day of your period. If the number of days within your cycle varies, this can lead to irregular periods. Cycles within 21 to 35 days are considered to be normal, but if the number of days in your cycle varies, your periods can be irregular. 
  • Unpredictable or inconsistent menstrual flow: If you are experiencing spotting or unpredictable periods, this can be a sign of irregularity. Sometimes with spotting it can be hard to determine when your period actually starts. 

Irregular periods can be caused by hormonal imbalances, stress, change, health conditions, pregnancy, and more. If you are experiencing irregular periods or spotting, period underwear can provide peace of mind as they provide unseen protection. 

The Normal Menstrual Cycle

Tracking cycles can help you determine what’s normal for your body. In today’s modern world, there are user-friendly applications available that you can download on your smartphone.

These applications can make it easy to track and predict your cycles. If you hit a point where you need or want to seek medical advice, an accurate log of cycles can help provide the doctor with the right information to make appropriate medical recommendations. 

  • Cycle length: Cycles between 21 and 35 days are considered to be normal. The average cycle length for a woman is 28 days. 
  • Duration of menstruation: Menstruation typically occurs for 3-8 days, although this can vary. The first 2 days of a cycle is usually the heaviest flow. 

Common Causes of Irregular Periods

Irregular periods may be something you have dealt with for a while, or they may be new to you. They can be caused by a variety of causes, some of which may come with lifestyle or life changes. Some causes of irregular periods include the following. 

  • Hormonal imbalances (PCOS, thyroid disorders)
  • Stress 
  • Lifestyle factors
  • Weight fluctuations
  • Medications 
  • Contraceptives

Irregular Periods in Adolescents

Regardless of age, women with periods can experience irregularities. Just as adults, adolescents can wear period underwear too for leakproof protection.

Periods can be embarrassing enough for adolescents, and some may not want to talk about them.

Adolescent bodies are constantly going through change (as any body is) but even more so as they experience puberty and hormone changes. These factors can contribute to irregular periods. 

Equip your adolescent with period underwear that they can wear just like their regular underwear. This might not regulate periods, but it can help them avoid the embarrassment of period leaks or disruptions. Shop our collection of Teen Period Underwear today. 

Irregular Periods in Adulthood

  • Explain the causes and implications of irregular periods in adult women.
    • Pregnancy and breastfeeding.
    • Perimenopause.
    • Health conditions affecting the reproductive system.

Diagnosing Irregular Periods

Our bodies and life are constantly evolving. Therefore, periods may become irregular, even after being regular for some time. When you consult your doctor, they will likely ask about cycle dates.

Providing your doctor with an accurate timeline of cycles and dates can help them diagnose irregular periods. While there aren’t many ways to regulate a period, there may be other conditions to explore that are treatable.

Your doctor may examine your medical history and or body, run blood tests, or perform imaging such as an ultrasound to help them deliver an official diagnosis. 

Health Implications and Concerns

Irregular periods can be a sign of underlying health issues in some cases. Additionally, irregular cycles can lead to fertility issues. Rest assured though, irregular cycles are something many women deal with. Let’s look at some of the health implications and concerns that are associated with irregular periods. 

  • Fertility issues: Irregular periods can mean irregular cycles, which can complicate conceiving. Tracking cycles and ovulation can be exhausting, especially when your peak window is constantly changing. If you are experiencing irregular periods and fertility, you may want to contact your OBGYN or a fertility specialist for further testing. 
  • Increased risk of certain health conditions: Irregular periods can be a sign of certain health conditions such as thyroid issues, Cushing’s syndrome, primary ovarian insufficiency (POI), and more. While most women should see their OBGYN on an annual basis, you may want to consider an additional visit if you are experiencing irregular periods. 
  • Impact on overall well-being: Periods can be exhausting as it is. When you add unpredictability to the mix, it can be even harder to mentally prepare for your period. Additionally, it can leave you worrying about leaks. Period underwear can be worn just like your regular underwear. Our period underwear are buttery soft and offered in a variety of styles, making them ideal for daily use. Let your period come when it’s ready, but always be ready for it with period underwear. 

Managing Irregular Periods

Embracing the curveballs our body throws at us is important. While irregular periods can be frustrating, there are ways to deal with them so they don’t impact your life as much.

Maintaining a healthy and consistent lifestyle can help manage periods in some cases. Consider your diet, stress levels, and exercise routine. Additionally, hormone therapies can effectively manage irregular periods. Lastly, contraceptives can help regulate periods and cycles. 

When to Seek Medical Advice

While irregular periods may be no cause for concern, you should still inform your doctor. Additionally, if you are experiencing the following you may want to seek medical advice. 

  • Sudden changes in menstrual patterns
  • Severe pain or discomfort
  • Concerns about fertility


Irregular periods can mean surprise periods. For leakproof protection, shop Proof® leakproof period underwear. Featuring an absorbent core and Leak-Loc® edges, our underwear can protect from all kinds of leaks. Find your flow at Proof and be prepared for your period whenever it comes. 

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