Irregular menstruation

Missed, delayed, or inconsistent periods or menstrual bleeding patterns that are out of the ordinary.

Description

Missed, delayed, or inconsistent periods or menstrual bleeding patterns that are out of the ordinary.

When to seek immediate medical care

See a doctor right away if:

• You suddenly get a fever and feel sick after using tampons.

When to make a doctor's appointment

See a doctor if:

• Your periods suddenly stop for more than 90 days, and you're not pregnant.
• Your periods become irregular after having been regular.
• You bleed for more than seven days.
• You bleed more heavily than usual or soak through more than one pad or tampon every hour or two.
• Your periods are less than 21 days or more than 35 days apart.
• You bleed between periods.
• You develop severe pain during a period.