HSV-2 can be transmitted through any kind of oral, anal, or genital sexual contact not protected by condoms or other barrier methods. There are two types of herpes: HSV-1, the cause of cold sores, and HSV-2, the cause of genital herpes. These sores can become blisters that fill with infected fluid, which oozes out and causes pain when they’re broken open. Genital herpes is a sexually transmitted disease (STD) that can result in bumps known as herpetic sores. They’re usually not worth worrying about, but some of them can affect your fertility. This type of vein abnormality only happens in the scrotum, and more commonly in the left side of your scrotum, but varicoceles are a lot like varicose veins that can happen in your leg. VaricoceleĪ varicocele happens when a vein in your scrotum becomes enlarged. See a doctor to get your scrotum examined to make sure the mass isn’t cancerous. They also share some symptoms with cancerous testicular masses. They can grow and cause pain, discomfort, and a sensation of swelling in your scrotum. Spermatoceles are harmless and can’t become cancerous. It doesn’t cause any pain, but you can feel a spermatocele as a tiny, firm lump underneath the skin of the scrotum. SpermatoceleĪ spermatocele happens when a cyst grows in the epididymis, a tube in each of your testicles that contains fluid and unused sperm. These cysts are benign and not a cause for concern. These glands contain an oil called sebum that helps keep your skin coated and protected. Sebaceous cystĪ sebaceous cyst happens when air, fluid, or another substance gets trapped inside a sebaceous gland. white pus in the middle of the bumps (whiteheads) or darkened spot where pus has dried out (blackheads).Pimples are easy to spot because of their recognizable symptoms: buildup of dirt and oils from sweating or not bathing regularly.These follicles can experience pimples for a number of reasons, including: Your scrotum has many follicles that contain hairs. Here are some of the possible causes of a bump on your scrotum, including minor conditions and more serious conditions.

Small hard lump in scrotum