Can wearing of tight pants cause pain in the testicle?

Hello doctor,

I am 20 years old. Two to three months ago, I started to have pain on my left testicle whenever I go out as I am usually at home. I speculate that I have varicocele as upon doing a self-examination, I found that the veins were bigger than the other testicle. There were no lumps found, but the left testicle feels bigger than the right one. I would say it is around 5 mm bigger in diameter. I do not have urinary problems like burning sensation. Although when it pains, my left lower abdomen and the pelvic area also hurt sometimes which could be due to lack of exercise as I am on my computer most of the time. The pain or ache on my left testicle usually appears when I am wearing tight pants. But I did not have this problem three months ago. I consulted a general practitioner, and he did a physical check and said it was likely due to congestion of the blood at the testicle. Do you think it could be an infection like epididymitis? I only had sex once in my life with my partner, but I do not have any other symptoms of STD. And do you think that there is something serious? Or is it probably due to congestion or tight pants?

Thank you doctor.

When I said tight pants, I did not mean the waist. But the bottom of the pants where the scrotum rests on. In most of my pants the bottom of the crotch area seems to be very close to my scrotum and I was wondering if it could be causing the pain? When I touch my left testicle bottom, I can feel the epididymis with a bit of force, and a little painful too. Could it be due to the pants or possibly an infection which made the epididymis more sensitive?

Thank you doctor.

I have followed your advice of scrotal support as well as getting some Pregabalin. I want to ask another question too. I noticed that my left testicle also becomes bigger, and then sometimes, it is normal in size similar to my right testicle (but still bigger by a bit). Is this normal? Especially if it is due to congestion or something, and how much bigger in diameter should a testicle be? I have seen that it should be around half a teaspoon bigger, but I do not understand that measurement. I will also be going for a scrotal USG if the pain pops up again.

Thank you doctor.

I have seen another doctor, and he also said that it was likely due to congestion and he said that it was very unlikely due to any infection. He said that it might be the beginning of having some varicocele too and gave me Daflon. And as I was running just now with loose pants, the pain came back again, and I changed the underwear that was not too tight nor loose. During that period when it was painful, I touched the left testicle and found it painful even to touch it. So do you think that my final diagnosis is just congestion or varicocele?