Orchitis
What is Orchitis?
Orchitis is inflammation of one or both testicles. This condition causes swelling, pain, and tenderness in the affected testicle. It most often occurs in adult males but can affect males of any age.
The inflammation can result from viral or bacterial infections. Mumps is one of the most common viral causes, though mumps-related orchitis has become less frequent since widespread vaccination. Bacterial orchitis often develops from urinary tract infections or sexually transmitted infections that spread to the testicles. Less commonly, orchitis can develop alongside epididymitis, which is inflammation of the tube that carries sperm from the testicle.
While orchitis can be uncomfortable and concerning, most cases resolve with proper treatment. Early diagnosis and care help prevent potential complications like testicular shrinkage or fertility problems. Understanding the signs and seeking medical attention quickly can lead to better outcomes.
Symptoms
- Pain and tenderness in one or both testicles
- Swelling of the affected testicle or testicles
- Fever and chills
- Nausea and vomiting
- Discharge from the penis
- Blood in the semen
- Painful urination
- Pain during ejaculation
- Groin pain or swelling
- General feeling of unwellness or fatigue
Symptoms often develop quickly over several hours or days. Some people experience mild symptoms at first that worsen without treatment. The affected testicle may feel warm to the touch and appear red or swollen.
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Causes and risk factors
Viral infections are a common cause of orchitis in adults. The mumps virus historically caused many cases, particularly in men who developed mumps after puberty. Other viruses that can lead to orchitis include Epstein-Barr virus, varicella, and certain enteroviruses. Bacterial infections represent another major cause, often stemming from sexually transmitted infections like gonorrhea or chlamydia. Bacteria from urinary tract infections can also travel to the testicles and cause inflammation.
Risk factors include lack of mumps vaccination, sexual activity with multiple partners without barrier protection, history of urinary tract infections, and having an uncircumcised penis. Men who have structural abnormalities of the urinary tract or use urinary catheters face higher risk. Age plays a role, as mumps orchitis typically affects postpubescent males. Immune system problems can make some people more vulnerable to infections that lead to orchitis. Recent urological surgery or trauma to the groin area may also increase risk.
How it's diagnosed
Diagnosis begins with a physical examination where your doctor checks for swelling, tenderness, and enlarged lymph nodes in the groin. Your doctor will ask about your symptoms, recent infections, sexual history, and vaccination status. A urinalysis can detect bacteria or white blood cells that suggest infection. Urine culture may identify the specific bacteria causing the problem.
Blood tests can help identify viral causes and check for signs of infection. Testing for mumps antibodies can confirm whether mumps is the cause. Screening for sexually transmitted infections is often recommended to rule out bacterial causes. An ultrasound of the scrotum helps visualize the testicles and rule out other conditions like testicular torsion or tumors. Talk to your doctor about testing options specific to your symptoms and medical history.
Treatment options
- Rest and bed rest during the acute phase
- Elevating the scrotum with supportive underwear or towels
- Applying ice packs to reduce swelling and pain
- Over-the-counter pain relievers like ibuprofen or acetaminophen
- Antibiotics for bacterial orchitis
- Treatment of underlying sexually transmitted infections
- Avoiding heavy lifting and strenuous activity
- Staying hydrated and getting adequate nutrition
- Avoiding sexual activity until symptoms resolve
- Follow-up care to monitor healing and prevent complications
Frequently asked questions
Viral orchitis typically improves within 3 to 10 days with proper rest and symptom management. Bacterial orchitis may take several weeks to fully resolve, even with antibiotic treatment. Complete recovery depends on the underlying cause, severity of inflammation, and how quickly treatment begins. Your doctor will monitor your progress to ensure proper healing.
Orchitis can potentially affect fertility, especially if both testicles are involved or if treatment is delayed. Mumps orchitis carries a higher risk of testicular shrinkage and reduced sperm production. Most men with orchitis affecting only one testicle maintain normal fertility. If you have concerns about fertility after orchitis, talk to your doctor about sperm testing and fertility preservation options.
The infections that cause orchitis can be contagious, but orchitis itself is not directly transmitted. If orchitis results from mumps, you can spread the mumps virus to others through respiratory droplets. Bacterial orchitis from sexually transmitted infections can spread through sexual contact. Practice good hygiene and avoid sexual activity until your infection clears to protect others.
See a doctor immediately if you experience sudden, severe testicular pain or swelling. Seek urgent care if you have fever, nausea, or discharge along with testicular symptoms. Any testicular pain lasting more than a few hours warrants medical evaluation. Quick medical attention is important because some causes of testicular pain require emergency treatment to prevent permanent damage.
Orchitis can recur if the underlying cause is not fully treated or if you are exposed to new infections. Chronic epididymo-orchitis can develop in some cases, causing recurring symptoms. Practicing safe sex, completing all prescribed antibiotics, and addressing urinary tract problems can reduce recurrence risk. Regular follow-up with your doctor helps catch any recurring issues early.
Bacterial orchitis requires antibiotics to clear the infection and prevent complications. Viral orchitis does not respond to antibiotics and is treated with supportive care only. Your doctor will determine whether bacteria or a virus is causing your orchitis through examination and testing. Never start antibiotics without a doctor's prescription, as inappropriate use can lead to resistance.
Getting vaccinated against mumps is the best way to prevent mumps-related orchitis. Practicing safe sex with barrier protection reduces your risk of sexually transmitted infections that can cause orchitis. Treating urinary tract infections promptly prevents bacteria from spreading to the testicles. Good hygiene and prompt attention to any genital symptoms also help reduce risk.
Orchitis is inflammation of the testicle itself, while epididymitis affects the epididymis, a tube behind the testicle that stores and carries sperm. The two conditions share similar symptoms and often occur together, a condition called epididymo-orchitis. Both cause pain and swelling but may have different causes. Your doctor can distinguish between them through physical examination and imaging studies.
Avoid exercise and strenuous physical activity during the acute phase of orchitis. Physical activity can worsen pain and delay healing. Rest is essential for the first several days until symptoms begin to improve. Once your doctor clears you, gradually return to normal activity. Listen to your body and stop any activity that causes pain or discomfort.
Standard blood tests may show signs of infection like elevated white blood cell counts, but they cannot diagnose orchitis directly. Specific tests like mumps antibody testing can identify viral causes. Blood tests for sexually transmitted infections help identify bacterial causes. Your doctor will order appropriate tests based on your symptoms and physical examination findings.