Is it normal for one testicle to be bigger or hang lower?

Yes, completely. Almost no man has perfectly matched testicles. One being slightly larger, or one hanging a little lower than the other, is normal anatomy — not a sign of disease. What matters is a change over time: a testicle that becomes noticeably larger, heavier or firmer than it used to be, or a distinct hard lump on it. The size difference itself is nothing to worry about.

What does the epididymis feel like and why does it feel like a lump?

The epididymis is a soft, coiled tube that sits along the top and back of each testicle. It feels bumpy, rope-like and slightly tender — quite different from the smooth, firm, egg-shaped testicle in front of it. A huge number of men feel it for the first time, panic, and think they've found a tumour. It's normal and it's meant to be there. Feel both sides: if the bumpy structure is in the same place on each testicle, that's almost certainly your epididymis, not a lump.

Are most testicular lumps cancer?

No. Most lumps and swellings in the scrotum are benign — fluid-filled cysts (spermatoceles), enlarged veins (varicocele, often described as a bag of worms), or other harmless causes. The one that matters is a hard, painless lump on the testicle itself. That specific finding can be the classic sign of testicular cancer and must be checked promptly — but even then, caught early it's one of the most curable cancers there is.

How often should I do a testicular self-exam?

Roughly once a month is a sensible rhythm — often enough to learn what's normal for you and notice a change early, not so often that it becomes anxiety. Do it after a warm shower or bath, when the scrotum is relaxed. The goal isn't to find something; it's to know your own baseline so that if something does change, you catch it quickly.

I felt a lump but it doesn't hurt — should I wait and see?

A hard, painless lump on the testicle is exactly the kind you should NOT wait on — painlessness is normal for testicular cancer, not reassuring. Don't panic, but book a doctor promptly (within days, not months). The flip side: sudden, severe testicular pain that comes on fast is a different emergency (possible torsion) and means going to a hospital immediately, not waiting.

Which doctor do I see in India for a testicular lump?

A urologist is the specialist. A general physician can do the first check and refer you, but for a testicular lump it's worth going to a urologist directly if you can. The first test is almost always a scrotal ultrasound — painless, quick, and very accurate at telling a harmless cyst from something that needs more attention. It's a routine presentation; there's nothing to be embarrassed about.

How to Check Your Testicles for Lumps (Self-Exam)

Maybe you were in the shower and felt something that wasn’t there before. Maybe a health post made you go “wait, have I ever actually checked?” Either way, you’re here, your stomach is a bit tight, and you want a straight answer.

Here it is. Checking your own testicles takes about a minute, it’s genuinely useful, and most lumps men find turn out to be harmless. But there is one specific kind of lump that you must not ignore — and the good news, even there, is that it’s one of the most curable cancers known when it’s caught early. So let’s do this calmly and properly.

How to check yourself — step by step

The best time is after a warm shower or bath. Heat relaxes the scrotum and lets the testicles hang loose, so everything is easier to feel (Cleveland Clinic).

Stand up. Cup your scrotum in your palm first, just to get a feel for the overall size and weight. Get to know your normal — that’s the whole point.
Check one testicle at a time. Roll it gently between the thumb (on top) and fingers (underneath) of both hands. Use light, slow pressure. This shouldn’t hurt.
Feel the whole surface. A normal testicle is smooth, firm and egg-shaped, with no hard bumps on its surface. You’re feeling along the front and the sides for anything hard, like a small pea or a grain of rice sitting on the testicle itself.
Find the epididymis — and don’t mistake it for a lump. Along the top and back of each testicle is a soft, coiled tube called the epididymis. It feels bumpy and rope-like, a bit tender, and noticeably different from the smooth testicle in front. This is normal anatomy. It is the single most common thing men panic about. (More on that below.)
Repeat on the other side, and compare.

Do this about once a month. Not to hunt for disease, but to learn your own baseline so well that you’d notice a real change quickly.

What’s completely normal

A lot of “abnormal” findings are just normal anatomy you’d never paid attention to before.

One testicle slightly bigger than the other — normal. Almost no man is symmetrical.
One hanging lower than the other — normal, usually the left.
The bumpy epididymis at the top and back of each testicle — normal, and meant to be there. Here’s a useful trick: feel both sides. If the soft, bumpy, rope-like structure is in the same place on each testicle, that’s your epididymis, not a tumour.
A dull ache after sitting a long time, or a vein structure that feels like “a bag of worms” above the testicle — that’s likely a varicocele, enlarged veins in the scrotum. Common, usually harmless, occasionally relevant to fertility — worth mentioning to a doctor but not an emergency.

What most lumps actually turn out to be

If you do feel a lump or swelling, the odds are heavily in your favour. The majority of scrotal lumps are benign (AAFP; City of Hope):

Spermatocele (epididymal cyst) — a smooth, fluid-filled sac on the epididymis, not on the testicle itself. Harmless, no link to cancer, usually needs no treatment.
Varicocele — enlarged veins, the “bag of worms” feel described above.
Hydrocele — fluid around the testicle, causing a soft, painless swelling.

These are all things a doctor can sort out easily, and most need nothing more than reassurance.

The one lump that matters — and why fear is the wrong response

Here’s the part not to skim, because false reassurance would be doing you a disservice.

A hard, painless lump on the testicle itself is the classic sign of testicular cancer. It often feels like a small, firm pea or pebble embedded in the surface — though sometimes the whole testicle simply feels harder, heavier or enlarged rather than having a distinct lump. The key word is painless — the absence of pain is normal here, not reassuring (Johns Hopkins; Testicular Cancer Foundation). Other things to flag: a testicle that’s become noticeably larger, firmer or heavier than before, or a dull ache or feeling of heaviness in the scrotum.

Now the two facts that should replace fear with action:

Testicular cancer is the most common cancer in young men aged roughly 15 to 40 — exactly the group that assumes cancer is “an old person’s problem” and waits (StatPearls/NIH; Moffitt).
It is also one of the most curable cancers there is. Caught early, cure rates are above 95%, and overall survival is excellent even when found later — a man’s lifetime risk of dying from it is roughly 1 in 5,000 (Johns Hopkins statistics; American Cancer Society).

So the enemy here isn’t the lump. The enemy is the delay caused by fear. Men who ignore a hard lump for months out of dread are the ones who turn a highly curable problem into a harder one. The whole logic of self-exams rests on this: early is everything, and early is easy.

For Indian men, one extra bit of perspective: testicular cancer is genuinely rarer in India than in the West — roughly 0.5 cases per 100,000 men, against around 6 per 100,000 in Europe and the US (Histopathological study, India). That’s reassuring odds. But “rare” is not “never,” and it doesn’t change the rule: a hard, painless lump gets checked promptly, full stop.

See a doctor promptly if you find:

A hard, painless lump on the testicle itself.
A testicle that has become noticeably larger, firmer or heavier than it used to be.
A persistent dull ache or heaviness in the scrotum or lower belly.
Any new swelling or change you can’t explain — including the harmless-sounding ones. Better to have a doctor confirm “it’s just a cyst” than to guess.

Promptly means within days, not “when I get around to it.” It does not mean panic — go in calm, knowing the most likely outcome is reassurance, and even the worst case is highly treatable.

When it’s an emergency — go to a hospital NOW

This is different and urgent. Sudden, severe pain in one testicle — coming on fast, often with nausea, vomiting, or the testicle sitting high or twisted — can be testicular torsion, where the cord supplying blood to the testicle twists and cuts off its supply (Mayo Clinic; AAFP).

This is a surgical emergency with a time window measured in hours. The testicle can usually be saved if surgery happens within about 6 hours of the pain starting; salvage rates fall sharply after that. Do not wait, do not self-check, do not “see if it settles.” Go to the nearest emergency department immediately.

Quick way to hold the two apart in your head:

Hard, painless lump, no urgency to the pain → see a doctor promptly (days).
Sudden, severe pain, fast onset → emergency room now (hours).

What the doctor will actually do

It’s far less of an ordeal than the worry suggests. A urologist (the right specialist; a GP can refer you) will examine you and, in almost all cases, order a scrotal ultrasound — painless, takes a few minutes, and is extremely accurate at telling a harmless cyst apart from something that needs more attention (Urology Care Foundation). Most men walk out with reassurance and a name for the harmless thing they’d been dreading.

The bottom line

Check yourself about once a month, after a warm shower. Learn what’s normal for you — including the bumpy epididymis and the fact that one side is usually bigger or lower. Most lumps you might find are harmless. A hard, painless lump on the testicle is the one that needs a doctor promptly — not because you should be afraid, but because catching it early makes one of the most curable cancers even easier to beat. And sudden, severe testicular pain is a hospital-now emergency. Knowing the difference is most of the battle.