Irregular periods are one of the most common reasons women visit an OB-GYN.
Many patients ask, “Is it normal that my periods are not on time every month?”

What Counts as Irregular?

A “normal” menstrual cycle is typically between 21–35 days. Irregular means:

• Periods come too early or too late
• Skipping months
• Very heavy or very light flow
• Bleeding between periods

Common Causes:

• Stress or sudden weight changes
• Polycystic Ovary Syndrome (PCOS)
• Thyroid issues
• Perimenopause
• Birth control use or stopping it suddenly
• Uterine conditions like fibroids or endometriosis

When to See a Doctor:

• Skipped periods for 3+ months (and you’re not pregnant)
• Bleeding that soaks through pads in less than an hour
• Severe cramps or blood clots
• Unexplained spotting between periods