Abdominal Pain - Female
Abdominal Pain - Male
Acne
Animal or Human Bite
Antibiotics: When Do They Help
Arm Injury
Arm Pain
Asthma Attack
Athlete's Foot
Back Pain
Bed Bug Bite
Bee or Yellow Jacket Sting
Blisters
Bottle-Feeding Formula Questions
Breast-Feeding Questions
Breath-holding Spell
Bruise
Bruises and Cuts
Burn
Chest Pain
Chickenpox
Circumcision Problems
Colds
Constipation
Cough
Coughs: Meds or Home Remedies
Cracked or Dry Skin
Cradle Cap
Croup
Crying Baby - Before 3 Months Old
Crying Child - 3 Months and Older
Cut, Scrape, or Bruise
Diaper Rash
Diarrhea
Diarrhea Diseases From Travel
Dizziness
Drinking Fluids - Decreased
Dry Skin
Ear - Congestion
Ear - Discharge
Ear - Injury
Ear - Pulling At or Rubbing
Ear - Swimmer's
Ear Infection Questions
Earache
Earwax Buildup
Ebola Exposure
Eczema
Emergency Symptoms Not to Miss
Eye - Allergy
Eye - Foreign Body or Object
Eye - Injury
Eye - Pus or Discharge
Eye - Red Without Pus
Eye - Swelling
Fainting
Fever
Fever - How to Take the Temperature
Fever - Myths Versus Facts
Fifth Disease
Finger Injury
Fire Ant Sting
Flu
Fluid Intake Decreased
Food Allergy
Foreskin Care Questions
Frostbite
Genital Injury - Female
Genital Injury - Male
Hair Loss
Hand-Foot-And-Mouth Disease HFMD
Hay Fever
Head Injury
Headache
Heat Exposure and Reactions
Heat Rash
Hives
Human or Animal Bite
Immunization Reactions
Impetigo - Infected Sores
Infection Exposure Questions
Influenza - Seasonal
Influenza Exposure
Insect Bite
Jaundiced Newborn
Jellyfish Sting
Jock Itch
Leg Injury
Leg Pain
Lice - Head
Lymph Nodes - Swollen
Medication - Refusal to Take
Menstrual Cramps
Menstrual Period - Missed or Late
Mental Health Problems
Molluscum
Mosquito Bite
Mosquito-Borne Diseases from Travel
Motion Sickness
Mouth Injury
Mouth Ulcers
Neck Pain or Stiffness
Newborn Appearance Questions
Newborn Illness - How to Recognize
Newborn Rashes and Birthmarks
Newborn Reflexes and Behavior
Nose Allergy Hay Fever
Nose Injury
Nosebleed
Penis-Scrotum Symptoms
Pinworms
Poison Ivy - Oak - Sumac
Puncture Wound
Rash or Redness - Localized
Rash or Redness - Widespread
Reflux Spitting Up
Ringworm
Roseola
Scabies
Scorpion Sting
Scrape
Sinus Pain or Congestion
Skin Foreign Body or Object
Skin Injury
Skin Lump
Sliver or Splinter
Sore Throat
Spider Bite
Spitting Up - Reflux
Stomach Pain - Female
Stomach Pain - Male
Stools - Blood In
Stools - Unusual Color
Strep Throat Exposure
Strep Throat Infection
Sty
Sunburn
Suture Questions
Swallowed Foreign Body or Object
Swallowed Harmless Substance
Swimmer's Itch - Lakes and Oceans
Tear Duct - Blocked
Teething
Thrush
Tick Bite
Toe Injury
Toenail - Ingrown
Tooth Injury
Toothache
Umbilical Cord Symptoms
Urinary Tract Infection - Female
Urination Pain - Female
Urination Pain - Male
Vaginal Bleeding
Vaginal Symptoms
Vomiting With Diarrhea
Vomiting Without Diarrhea
Warts
Wheezing Other Than Asthma
Wound Infection

Resources

Is Your Child Sick?TM


Menstrual Period - Missed or Late

Is this your child's symptom?

  • Late or missed menstrual period
  • Late period: 5 or more days late compared to normal menstrual cycle
  • Missed period: no menstrual flow for more than 6 weeks
  • Teen not using any birth control that stops periods. These products include birth control shots, implants, and IUDs with hormones.

If NOT, try one of these:


Normal Cause of a Missed Period during the First Year

  • Skipping periods is common during the first 1 to 2 years after they start. This is due to not releasing an egg each month.
  • This is most likely the cause if less than 2 years since the first period
  • Has missed periods in the past or has had only 1 or 2 periods
  • Otherwise healthy
  • No signs of pregnancy such as breast tenderness, breast swelling or nausea

Common Cause of a Missed Period after the First Year

  • Pregnancy is the most common cause

Other Causes

  • Stress
  • Dieting, extreme exercise and weight loss
  • Polycystic ovarian disease
  • Endocrine disorders
  • Birth control products like birth control shots, implants, and some IUDs

Home Urine Pregnancy Tests

  • Home urine pregnancy tests do not cost very much. They are easy to use. Most drugstores sell these tests. No prescription is needed.
  • Urine pregnancy tests are very accurate. They can turn positive as early as the first week after a missed period.
  • It is best to do the pregnancy test first thing in the morning. Reason: hormone levels are higher in the morning urine.
  • Sometimes, a home test is negative even if you think you might be pregnant. In this case, repeat the test. Do the repeat test in 3-5 days. You can also go to a doctor's office for testing.
  • A pregnancy testing fact sheet can be found at www.womenshealth.gov. Search "pregnancy tests."

When to Call for Menstrual Period - Missed or Late

When to Call for Menstrual Period - Missed or Late

Call Doctor or Seek Care Now

  • Your teen looks or acts very sick
  • You think your teen needs to be seen, and the problem is urgent

Call Doctor During Office Hours

  • Home pregnancy test is positive
  • Want a pregnancy test done in the office
  • Sexual intercourse (had sex) within the last 3 months
  • Recent breast swelling, weight gain or nausea
  • Teen acts sick
  • Has missed 2 or more periods and prior periods were regular
  • Recent weight loss
  • Excessive exercise suspected as cause of no periods
  • First period started less than 1 year ago and has missed 4 or more periods
  • Age 15 or older and periods have not started
  • Cause is unknown (not recent onset of menstrual periods or recent stress)
  • You think your teen needs to be seen, but the problem is not urgent
  • You have other questions or concerns

Self Care at Home

  • Pregnancy suspected or possible
  • First period started less than 1 year ago and has missed 3 periods or less
  • Recent stress (such as starting at a new school, break-up) causing late period

Call Doctor or Seek Care Now

  • Your teen looks or acts very sick
  • You think your teen needs to be seen, and the problem is urgent

Call Doctor During Office Hours

  • Home pregnancy test is positive
  • Want a pregnancy test done in the office
  • Sexual intercourse (had sex) within the last 3 months
  • Recent breast swelling, weight gain or nausea
  • Teen acts sick
  • Has missed 2 or more periods and prior periods were regular
  • Recent weight loss
  • Excessive exercise suspected as cause of no periods
  • First period started less than 1 year ago and has missed 4 or more periods
  • Age 15 or older and periods have not started
  • Cause is unknown (not recent onset of menstrual periods or recent stress)
  • You think your teen needs to be seen, but the problem is not urgent
  • You have other questions or concerns

Self Care at Home

  • Pregnancy suspected or possible
  • First period started less than 1 year ago and has missed 3 periods or less
  • Recent stress (such as starting at a new school, break-up) causing late period

Care Advice

Pregnancy Suspected or Possible

  1. What You Should Know About Late Periods if Having Sex:
    • Menstrual periods stop when a woman becomes pregnant.
    • A woman with a missed or late period should think about pregnancy.
    • Here is some care advice that should help.
  2. Pregnancy Test, When in Doubt:
    • If there is a chance that you might be pregnant, use a urine pregnancy test.
    • You can buy a pregnancy test at any drugstore.
    • It works best first thing in the morning.
    • Follow all package instructions.
  3. Call Your Doctor If:
    • You have trouble with the home pregnancy test
    • Pregnancy test is positive
    • Misses 2 periods and pregnancy test is negative
    • Your teen develops any serious symptoms

First Period Started Less than 1 Year Ago

  1. What You Should Know About First Periods in Young Teens:
    • Skipping periods is common during the first 1 or 2 years after they start.
    • It doesn't mean anything serious or cause any harm.
    • A girl can normally go up to 6 months between the first and second periods.
    • Also, a girl can go up to 4 months between the second and third periods.
    • Normal irregular periods can go on for 2 years.
  2. Call Your Doctor If:
    • Misses 4 periods
    • New symptoms suggest pregnancy (such as morning sickness)
    • You have other questions

Recent Stress Causing Late Period

  1. What You Should Know about Stress and Late Menstrual Periods:
    • Stress can disrupt normal menstrual cycles.
    • Try to help your daughter deal with the stress by talking about it.
    • Also, try to avoid or decrease stressors.
    • If this does not help, seek help from a counselor.
  2. Call Your Doctor If:
    • Misses 2 periods
    • Your daughter needs help coping with stress
    • New symptoms suggest pregnancy (such as morning sickness)
    • You have other questions

And remember, contact your doctor if your child develops any of the 'Call Your Doctor' symptoms.

Disclaimer: this health information is for educational purposes only. You, the reader, assume full responsibility for how you choose to use it.


Copyright 2000-2018. Schmitt Pediatric Guidelines LLC.

Select from over 100 symptoms to learn about managing your child's illness.