Testicular pain or a lump: the signs that mean "today", as triaged in Busan.
Most testicular pain is benign and most lumps are not in the testicle itself. A few presentations, though, cannot wait — and the difference is usually clear from the history before any scan. This guide from Urogyn, Busan Seomyeon, explains which signs mean same-day care, what a ₩200,000 scrotal ultrasound shows, and how epididymitis, varicocele, cysts and torsion are told apart.
By the urologists at Urogyn Men's Clinic, Seomyeon

Men's Health Clinic in Busan
The hub behind this guide — scrotal ultrasound, STI testing, testicular prosthesis and the men's health services under one roof in Seomyeon.
Read the men's health hub →- How do I know if this is an emergency or can wait until morning?
- Is a lump on top of the testicle the same as a lump in it?
- Could testicular pain be an STI?
- What does the ultrasound actually tell you?
- I have a varicocele — does it need surgery?
Each is answered below, the way our urologist triages it at the Seomyeon clinic — starting with the one that cannot wait.
The signs that mean "today" — or the emergency room — before you reach our Busan clinic
Sudden, severe pain in one testicle that started within hours, especially with nausea, a testicle sitting higher than usual, or pain that woke you — that is testicular torsion until proven otherwise, and the testicle survives about six hours. Go to an emergency department, not a clinic. Everything else — gradual pain over days, a painless lump, a dull ache, swelling after exertion — can be assessed at Urogyn in Busan Seomyeon within a day or two with a ₩200,000 scrotal ultrasound, and almost all of it turns out to be treatable or harmless.
That distinction is the whole first section of this guide because it is the one that cannot be got wrong. Torsion is uncommon in adults but not rare, and the men who lose a testicle are usually the men who waited a night to see if it would settle. The men's health hub lists the scrotal services; the contact page has the clinic's hours and the nearest hospital emergency departments for out-of-hours.
Sudden severe one-sided pain, nausea, high-riding testicle. Hospital emergency department now.
Pain building over 1–3 days, fever, urinary symptoms, or after injury. Clinic ultrasound and treatment.
Painless lump, dull ache, heaviness, swelling. Ultrasound sorts cyst, varicocele, hydrocele and tumour.
Pain without a lump: the common causes a Busan urologist sees
Epididymitis — inflammation of the tube behind the testicle — is the commonest cause of testicular pain in adult men. It builds over a day or two, the back of the testicle is tender and swollen, and there may be urinary burning or fever. In men under about thirty-five it is often sexually transmitted; over that age, usually a urinary bacterium. The ₩200,000 urine test and, where indicated, the STI panel decide the antibiotic. Chronic orchialgia — a dull ache over months with a normal scan — is common and frustrating, and is often referred from the pelvic floor or the back; our chronic pelvic pain guide covers that overlap. Post-vasectomy pain, trauma and referred pain from a kidney stone complete the usual list.
- 1 Epididymitis. Tender swollen epididymis, days of onset, often urinary symptoms. Urine test ± STI panel, antibiotics, support and anti-inflammatories.
- 2 Chronic ache, normal scan. Pelvic floor, nerve or referred. Managed, not operated on, in most men.
- 3 After trauma. Ultrasound to exclude rupture; most settle with support and rest.
A lump: the question is whether it is in the testicle or beside it
The examination at our Seomyeon clinic starts by locating the lump. Most lumps are beside the testicle: an epididymal cyst (spermatocele) sitting on top, a varicocele — dilated veins feeling like a "bag of worms" above the testicle, usually on the left — or a hydrocele, fluid around the testicle that makes the whole side larger and smooth. These are benign. A lump within the testicle itself — firm, usually painless, not separable from the testicular tissue — is treated as a possible tumour until the ultrasound says otherwise, and the ultrasound is done the same day. Testicular cancer is rare, highly treatable when caught early, and most common in men between twenty and forty, which is exactly the group that tends to wait.
What the ₩200,000 scrotal ultrasound shows
Scrotal ultrasound at our Busan clinic takes about fifteen minutes and answers the questions that matter: is the lump inside the testicle or outside it; is it solid or fluid; is blood flow present and normal — absent flow suggests torsion, increased flow suggests inflammation; are the veins of a varicocele dilated and does flow reverse on straining; how large is a hydrocele; and is the other side normal. It does not require preparation and the result is explained on the spot. For a solid intratesticular mass, the next step is tumour markers and a hospital referral the same day; for everything else, the plan is made in the room.

Dr. Kim Jin-seong — scrotal and prostate care
Director of the Busan branch, board-certified urologist, Gyeongsang National University, adjunct clinical professor at GNU Hospital. Performs scrotal ultrasound and manages epididymitis, varicocele and hydrocele at the Seomyeon clinic.
Read the men's health hub →Varicocele: when it matters and when it does not
A varicocele is found in about one man in seven and most need nothing done. It matters in two situations: when it causes a persistent heavy ache, and when a couple is trying to conceive and the semen analysis is abnormal, because the warmed, congested testicle can impair sperm production. In the second case the fertility screening — semen analysis from ₩150,000 and a hormone panel — comes before any decision about repair, and repair itself is a hospital or specialist procedure that we refer for with the full work-up. A varicocele found incidentally in a man with no symptoms and no fertility concern is left alone and explained.
After losing a testicle: what the clinic can restore
Men who have lost a testicle to torsion, trauma, infection or cancer surgery sometimes come to Busan years later asking about the empty side. A testicular prosthesis, from ₩3,600,000, restores the shape and feel of the scrotum; it does not restore hormone or sperm production, and the hormone question is checked separately with a blood test. It is a day procedure, and the honest conversation about what it does and does not do happens before booking.
Preventing the next episode once the cause is known
Most scrotal problems that come to our Seomyeon clinic have a sequel the man can influence. After epididymitis, finishing the full antibiotic course and treating the partner where an STI was found prevents the slow-burning recurrence that becomes chronic pain; supportive underwear for two weeks and avoiding heavy lifting helps the swelling settle. After a varicocele diagnosis, nothing needs changing unless fertility is in question. After a sebaceous cyst or hydrocele is confirmed benign, the useful habit is simply the monthly self-examination, so that a genuinely new lump is noticed against a known baseline. Men who have had a torsion on one side are counselled that the other side carries a higher risk and that sudden pain there is an emergency from the first minute. The vasectomy recovery guide covers the post-vasectomy ache that a small number of men experience.
Fitting a scrotal assessment into a trip to Busan
For a lump or a gradual ache, one visit is enough: examination, ultrasound and, if needed, urine and STI tests in the same hour, with results and a written plan the same or next day. Epididymitis treatment starts immediately and can be completed at home with the prescription. For a sudden severe pain while travelling, do not wait for the clinic to open — Busan's university hospitals have emergency departments, and we will see you afterwards for follow-up. Our same-day treatment guide explains what can be done in one visit.
How it runs at our Busan Seomyeon clinic — and your next step
Message us with when it started, whether it is pain, a lump or both, which side, whether there is fever or urinary burning, and any injury. If what you describe sounds like torsion we will tell you to go to an emergency department immediately rather than wait for an appointment. For everything else we reply with when to come and what we will do. The clinic is one minute from Seomyeon Station exit 7; the contact page has directions and hours.
- Can a vasectomy cause testicular pain years later? Post-vasectomy pain syndrome affects a small minority of men. It is assessed with the same ultrasound to exclude other causes, and most cases are managed without further surgery. Our vasectomy recovery guide describes the normal course.
- Does a hydrocele need treatment? Only if it is large enough to be uncomfortable or cosmetically troubling. Small hydroceles are left alone. Repair is a day procedure and is discussed only after the ultrasound confirms there is nothing else behind the fluid.
The urologists who assess scrotal problems in Busan.
Every guide on this site is written and reviewed by the three board-certified urologists below. The doctor who consults with you is the doctor who operates and answers your follow-up — never a junior doctor or a different surgeon.



Testicular pain or lump — FAQ
Related pages and next reads

Men's Health Clinic in Busan
Scrotal ultrasound, STI testing and five more services in Seomyeon.

STI Testing in Busan
The panel behind epididymitis in younger men.

Testicular Prosthesis in Busan
Restoring shape after loss — what it does and does not do.

Fertility Screening in Busan
Semen analysis first when a varicocele meets a fertility question.

Chronic Pelvic Pain in Men
When the ache is referred from the pelvic floor, not the testicle.

Same-Day Treatment in Busan
What can be assessed and treated in a single visit.
Urogyn Men's Clinic, Seomyeon
7F-702, Ion City Building, 74 Seomyeon-ro, Busanjin-gu, Busan 47299 — one minute on foot from Seomyeon Station Exit 7 (Lines 1 & 2).
Mon–Fri 10:00–18:00 · Sat 10:00–14:00 · Sun closed
부산광역시 부산진구 서면로 74 아이온시티빌딩 7층 702호 — show this to your taxi driver.

Describe it. We will tell you how soon to be seen.
When it started, pain or lump, which side, fever or urinary symptoms — that is enough for our urologist in Busan to say whether this is a same-day ultrasound, a routine visit, or an emergency department now.
