Clinicians assess painful periods by asking when pain happens, how it feels, and how it affects daily life. They may suggest an exam or ultrasound when the pattern points to another cause. No single test is needed for every person.

The aim is to understand the pattern and decide which next step may help. Your pain matters even when a scan is normal.

What will the clinician ask?

Period pain is also called dysmenorrhoea. A clinician may ask:

• When the pain began.
• Whether it starts before, during, or after bleeding.
• Where you feel it and how long it lasts.
• Whether it is getting worse.
• Whether pain occurs between periods or during sex.
• Whether bowel or bladder symptoms change around periods.
• How heavy or irregular bleeding is.
• What you have tried and whether it helped.
• How pain affects sleep, work, school, exercise, or relationships.

The ACOG painful-period guide explains that pain which is severe, worse than usual, or disruptive deserves care.

What patterns may suggest different causes?

Primary period pain often begins soon after periods start. It is linked with prostaglandins, which are natural chemicals that make the uterus contract. Pain often begins near the start of bleeding and eases after the first days.

Secondary period pain has another health issue behind it. A clinician may think about this when pain starts later, gets worse, lasts beyond the period, or comes with other pelvic symptoms.

Possible causes include endometriosis, adenomyosis, fibroids, ovarian cysts, pelvic infection, or a structural difference present from birth. Bowel, bladder, muscle, and nerve concerns can also cause pelvic pain.

The NHS period-problems guide describes common period concerns and when to seek advice. Read Femio's main painful-period guide for a wider overview.

Is a physical exam always needed?

No. The choice depends on age, symptoms, sexual history, and what the clinician needs to check. An abdominal exam may help locate pain or swelling.

With your consent, a pelvic exam may be suggested when another pelvic cause is possible. Ask what it may show and whether there are other options. You can request a chaperone, pause, or decline.

Tell the clinician if an exam may be painful or distressing. Past trauma, cultural needs, disability, and personal comfort should shape the approach.

When might an ultrasound help?

Ultrasound uses sound waves to create images. It may help find fibroids, some ovarian cysts, or signs of adenomyosis. It can also find some forms of endometriosis.

A scan over the abdomen may be offered. An internal vaginal scan may give a closer view, but it requires consent and may not suit everyone.

A normal ultrasound does not rule out every cause of pain. In particular, some endometriosis cannot be seen on routine imaging. Read how endometriosis is assessed if that concern fits your symptoms.

Are blood tests commonly used?

Blood tests do not confirm the cause of most period pain. They may be useful when the history suggests anaemia, infection, pregnancy, or another health concern.

A urine or pregnancy test may be suggested based on symptoms and pregnancy possibility. Every test should answer a clear question. Ask what the result can and cannot show.

What about laparoscopy?

Laparoscopy is keyhole surgery used to look inside the pelvis. It is not a routine first step for every painful period. It may be discussed when endometriosis or another cause remains possible and the result could change care.

Surgery has risks and recovery time. Ask about the purpose, alternatives, possible findings, and what may happen during the procedure before you agree.

How should you prepare?

Track a few cycles if you can, but do not delay care to create a perfect record. The guide to tracking your menstrual cycle explains a simple format.

Bring:

• Period start and end dates.
• Pain location, strength, and timing.
• Bleeding, bowel, bladder, or sex-related symptoms.
• Medicines and supplements.
• A short note about missed activities.
• Your main question or goal.

Ask what causes fit, what each check may add, and when the plan will be reviewed. The guide to period-pain care options can help you prepare shared-decision questions.

When to see a doctor

Book an appointment when pain stops normal tasks, becomes worse, begins outside periods, or comes with pain during sex, bowel movements, or urination. Seek advice for heavy or irregular bleeding, unusual discharge, fever, or fertility concerns.

Ask for another review if symptoms continue after a normal scan or earlier reassurance. Ongoing pain still deserves attention.

Frequently asked questions

Can a normal ultrasound rule out the cause?

No. It can find some causes, but it cannot show every form of endometriosis or every pain source.

Is an internal exam required?

No. It needs your consent. Ask why it is suggested and what alternatives exist.

Do blood tests confirm period pain?

No. They may check related concerns, but the symptom history remains central.

Should I wait several cycles before seeking care?

No. A short or incomplete record can still help, and severe pain should not wait.