Orchitis | Why Testicle Fit Swell and Pain 

Published on August 6, 2026 at 8:00 AM

🩺 Medically reviewed by the Health Decoded Guide Editorial Team · Last reviewed: August 2026

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🔍 Quick Breakdown

Orchitis na when one or both testicles swell because of infection. Na virus or bacteria dey usually cause am.

Most people recover well after treatment, but if testicle suddenly pain or swell, make person no delay to see healthcare professional because another serious problem fit dey cause am.

👉🏾 Testicle pain no be something wey person suppose ignore.

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🟧 Wetin be orchitis and wetin e dey do?

Orchitis na inflammation of the testicle.

• e fit affect one testicle or both
• e fit happen after virus infection like mumps
• bacteria from urine infection or sexually transmitted infection fit also cause am

👉🏾 Early treatment fit reduce the chance of complications.

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🟧 Wetin dey happen for your body?

• virus or bacteria enter the testicle
• your immune system begin fight the infection
• the testicle swell and become painful because of inflammation

Sometimes, the infection fit also affect the epididymis (the small tube wey carry sperm).

👉🏾 When both the testicle and epididymis inflame together, doctors dey call am epididymo-orchitis.

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🟧 Why e dey happen?

• Mumps virus
→ na one of the common viral causes, especially for teenagers and adults.

• Sexually transmitted infections (STIs)
→ infections like chlamydia and gonorrhoea fit spread reach the testicle.

• Urinary tract or prostate infection
→ bacteria fit move from the urinary tract enter the testicle.

👉🏾 The treatment depend on whether na virus or bacteria cause the orchitis.

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🟧 How you go know say e dey?

Early stage:

• pain for one testicle
• swelling begin gradually
• fever fit start

Later:

• the testicle become bigger
• redness or warmth for the scrotum
• pain when person dey urinate
• pain during ejaculation for some people

👉🏾 Unlike testicular torsion, orchitis symptoms usually develop over several hours or days.

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🟧 Wetin you fit do

• see healthcare professional as soon as possible
• rest and avoid heavy activities
• support the scrotum with comfortable underwear or towel
• use medicine for pain or antibiotics if doctor prescribe am
• apply cold pack wrapped in cloth to help reduce swelling

👉🏾 If na bacteria cause am, make you complete all your antibiotics even if you begin feel better.

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🟧 Real life example

Tunde notice say one side of him scrotum begin pain after e recover from mumps.

After two days:

• the testicle swell well
• walking and sitting become painful

At first, e think say the pain go disappear by itself. But when fever join, e go hospital.

Doctor examine am, do urine test and ultrasound, then confirm say na orchitis.

After e understand, e decide to:

• take all the medicine as prescribed
• rest until the swelling reduce
• return for follow-up appointment

👉🏾 After some weeks, the pain and swelling disappear completely.

👉🏾 No ignore testicle pain because some conditions wey resemble orchitis need emergency treatment.

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🟧 🩺 When you suppose go hospital 🚨

• sudden severe testicle pain
• testicle swell very fast
• high fever with severe pain
• vomiting together with severe testicle pain
• scrotum become very red or the pain no dey reduce

👉🏾 Early medical advice important.

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🟢 Final Reassurance

Most people wey get orchitis recover well after proper treatment.

👉🏾 The earlier doctor check painful or swollen testicle, the better chance to prevent complications and recover quickly.

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📚 Reference

For full medical references, see the English version of this article.

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⚠️ Disclaimer

This article na for education only. E no replace doctor advice.

If you get sudden testicle pain, swelling or fever, abeg see healthcare professional immediately.

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🔗 Related Health Topics

• Mumps
• Epididymitis
• Testicular Torsion
• Sexually Transmitted Infections (STIs)
• Urinary Tract Infection (UTI)

👉🏾 If you still get questions or prefer full medical detail, read the English version.