Testicular pain that shows up or gets worse when you walk usually comes from a structure near the testicle being jostled, compressed, or inflamed by the repetitive motion of your stride. The most common culprits are varicoceles, inguinal hernias, epididymitis, and nerve entrapment, each with a distinct pattern of pain that can help narrow down the cause. In rare cases, sudden severe pain signals an emergency.
Varicocele: Swollen Veins That Ache With Activity
A varicocele is a cluster of enlarged veins inside the scrotum, similar to varicose veins in the leg. It affects roughly 15% of adult men and is the most common cause of a dull, heavy ache that worsens when you’re upright and moving. Walking increases blood pressure in these swollen veins because gravity pulls blood downward, and the faulty valves inside the veins can’t push it back up efficiently. The result is a dragging or throbbing sensation that builds over the course of the day and typically eases when you lie down.
Varicoceles are most common on the left side. A doctor can often detect one during a standing physical exam by asking you to bear down (the Valsalva maneuver), which temporarily increases pressure and makes the enlarged veins easier to feel. If the varicocele causes persistent pain or affects fertility, a minor surgical procedure can seal off the damaged veins and reroute blood flow into healthy ones.
Inguinal Hernia: A Bulge That Refers Pain Downward
An inguinal hernia happens when tissue, usually a loop of intestine, pushes through a weak spot in the abdominal wall near the groin. In men, that weak spot is the inguinal canal, the same passage the spermatic cord travels through to reach the scrotum. Standing and walking for long periods can both cause and aggravate this type of hernia.
The hallmark sign is a visible or palpable bulge near the pubic bone that becomes more obvious when you stand, cough, or strain. Large hernias can extend into the scrotum itself, producing pain and swelling around the testicle. If you notice a bulge alongside the pain, especially one that grows more prominent when you’re on your feet, that’s a strong clue. Hernias generally require surgical repair, and you should seek prompt care if the bulge becomes painful, firm, or impossible to push back in, as that can indicate trapped tissue with compromised blood supply.
Epididymitis: Inflammation Behind the Testicle
The epididymis is a coiled tube sitting behind each testicle that stores and transports sperm. When it becomes inflamed, typically from a bacterial infection or, in younger men, a sexually transmitted infection, it produces a gradual onset of pain, swelling, and warmth on one side of the scrotum. Walking makes this worse because each step creates small movements and friction around the already-irritated tissue. In fact, the pain can become severe enough to cause a noticeable limp.
Unlike a varicocele’s dull ache, epididymitis often comes with redness, a low fever, or pain during urination. It responds well to antibiotics when caught early, and supportive measures like scrotal elevation and rest help manage discomfort during recovery.
Nerve Entrapment: Sharp Pain From Hip Movement
A less obvious cause is genitofemoral nerve entrapment. The genitofemoral nerve runs through the psoas muscle deep in your hip and pelvis, then branches down toward the groin and scrotum. If this nerve gets compressed or irritated, whether from tight hip flexors, scar tissue from a prior surgery, or repetitive athletic strain, it can produce sharp or burning pain in the groin with altered sensation below the crease of the hip. Walking aggravates it because each stride extends the hip and stretches the compressed nerve.
This diagnosis is often missed initially because the testicle itself looks and feels normal on exam. The pain pattern is the giveaway: it follows a line from the lower abdomen into the groin and scrotum rather than staying localized to the testicle. Treatment typically focuses on physical therapy targeting psoas stretching and core strengthening rather than surgery.
When the Pain Is an Emergency
Testicular torsion is the one scenario that requires immediate action. It occurs when the spermatic cord twists, cutting off blood flow to the testicle. The pain is sudden, severe, and often accompanied by swelling, nausea, and a testicle that sits higher than normal. This is not a gradual ache that builds while you walk. It strikes without warning and escalates fast.
Torsion requires emergency surgery. If blood flow is restored quickly, the testicle can almost always be saved. If it’s blocked for too long, the damage becomes permanent and the testicle may need to be removed. Any sudden, intense scrotal pain warrants an emergency room visit, regardless of what you were doing when it started.
What a Doctor Will Check
A provider will examine your testicles while you’re both standing and lying down, since some conditions (like varicoceles and hernias) only reveal themselves in an upright position. Beyond the physical exam, common next steps include a blood test and urinalysis to rule out infection, and an ultrasound if the provider feels a lump or needs to visualize blood flow. The combination of your pain pattern, when it started, and these test results is usually enough to identify the cause.
Managing the Pain While You Sort It Out
If your pain is mild to moderate and came on gradually, a few practical steps can reduce discomfort while you arrange to see a provider. Wearing an athletic supporter or snug, supportive underwear limits how much the scrotum moves with each step, which is often the single most effective change. When you’re resting, lying down with a folded towel beneath the scrotum takes gravitational pressure off the area. Over-the-counter anti-inflammatory pain relievers can help with swelling-related pain from conditions like epididymitis or varicoceles.
Pay attention to the pattern. Pain that steadily worsens over days, comes with fever or urinary symptoms, or involves a visible lump or bulge should move your timeline up. Pain that is sudden and severe should send you to the emergency room immediately.