3 Ways to Know if You Have Hydrocele - wikiHow (2024)

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Co-authored byRobert Dhir, MD

Last Updated: December 29, 2022References

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   Look for swelling. Stand in front of the mirror and look at your scrotum. If you have a hydrocele, at least one side of your scrotum will be larger than it normally is.^[3]

   • If you are trying to determine if an infant is suffering from a hydrocele, the procedure will be similar. Look for swelling in the testicl*s. The swelling may be on either or both sides of the testicl*s.
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   Feel for a hydrocele. Often, a hydrocele will feel like a fluid-filled sac inside the scrotum.^[4] Gently grasp your swollen testicl* and see if you can feel this balloon-like sac in your scrotum.^[5]

   • Typically, a hydrocele will not feel painful. If, when touching your scrotum, you experience pain, contact your doctor as it could indicate something more serious.
   • If an infant has a swollen testicl*, you can identify a hydrocele by gently feeling the scrotum. Inside the scrotum, you will feel the testicl*, and if there is a hydrocele, you will feel a second lump that feels like a soft, fluid-filled sac. In infants, this sac could be as small as a peanut.
   • Your doctor will do a physical examination and order an ultrasound to diagnose a hydrocele. Your doctor may also perform the flashlight test. If the mass trans-illuminates under exposure to a flashlight, then it is a hydrocele. If it doesn’t then it may be something more serious like a mass or hernia.

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   Pay attention to any difficulty walking that you experience. The more your scrotum swells, the more likely it is that you will have a hard time walking.^[6][7] Men with this issue have described the feeling as a dragging sensation, like something heavy was tied to their testicl*s. This is because gravity pulls your scrotum down, but because there is fluid in it that wasn’t there for most of your life, it will feel heavier than normal.

   • You might also experience this dragging sensation when you stand up after you have been lying or sitting down for a while.
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   Monitor any increase in swelling as time goes on. If you do not begin treatment for the hydrocele, your scrotum will continue to swell. If this happens, you might find it hard to put on your regular pants, instead opting to wear baggier pants so that no pressure is put on your swollen scrotum.

   • If you believe you might have a hydrocele, it is best to have a doctor determine the cause of the problem. Sometimes, a hydrocele is an indication of a hernia, which needs to be treated by a doctor.
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   Be aware of any pain you feel while urinating. Normally, you won’t feel any pain while urinating if you have a hydrocele. However, if your hydrocele is caused by an infection in the epididymis and testis (which is referred to as epididymal orchitis) you will most likely feel pain when you go to the bathroom. You should talk to a doctor right away if you begin experiencing this pain.^[8]

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   Understand what causes hydroceles in adult men. Men can have hydroceles for many reasons, the three most common of which are inflammation, infection (such as a sexually transmitted infection), or injury to one or both of their testicl*s. It can also be caused by injury or infection in the epididymis (a coil-like tube at the back of the testicl*s which is responsible for the maturation, storage and transport of sperm).^[9]

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   • Sometimes, a hydrocele can also be formed if your tunica vagin*lis (the membrane-like covering that covers your testes) collects too much fluid without being able to get rid of it.
   • To differentiate hydrocele from other testicular pathology, such as testicular cancer or hernia, shine a flashlight on the scrotum and see if the scrotum transilluminates (allows light to pass through the mass). To do this, dim the lights and shine a bright flashlight at the scrotum.^[10] If the scrotum transilluminates, then the mass is a hydrocele.
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   Be aware that hernias can cause hydroceles. A hernia can cause a hydrocele. However, this form of hydrocele generally presents itself as swelling higher up in the scrotum. To put it in perspective, this sort of swelling is about 2 to 4 centimeter (0.8 to 1.6in) from the base of the scrotum.^[11]

   • A hernia occurs when an organ protrudes through the tissue that normally contains it.^[12] In the case of a hydrocele, it is not uncommon for a piece of the intestine to protrude through the abdominal wall into the scrotum and is known as an inguinal hernia.
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   Know that filariasis can cause a type of hydrocele. Filariasis is a tropical disease that is caused by filarial worms get into a person’s lymph vessels. These worms are also the cause of elephantiasis. Instead of abdomen fluid, these worms cause a hydrocele to form that is actually filled with cholesterol and can be referred to as a chylocele.^[13]

   • If you live in the United States and have never visited Asia, Africa, a Western Pacific Island or any part of the Caribbean or South American, then you do not need to worry about this. However, if you live in any of these places or have spent time in these areas prior to your hydrocele development, you should visit a doctor as soon as possible.
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   Visit a doctor. If you have a hydrocele, it is generally best to visit a doctor because a hydrocele could indicate more serious problems.^[14][15]

   • Before your appointment, write down any recent injuries around the genital area that have occurred, any symptoms you have had (e.g. pain or difficulty walking), any medications you are taking, any inflammatory conditions of the scrotum, and when the hydrocele appeared.

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   Understand the normal development of a newborn’s testicl*s. In order to understand what is happening to your newborn, it's generally important to understand the normal process so you can figure out what went wrong. testicl*s develop in a fetus’s abdomen, very close to the kidneys, which later descend into the scrotum through a tunnel known as the inguinal canal. When the testicl*s descend, they are preceded by a sac that’s formed from the lining of the abdomen (this is called the processus vagin*lis).^[16][17]

   • The processus vagin*lis normally closes above the testicl*s, which prevents fluid from entering. If it doesn’t close properly, a hydrocele can form.
   • Hydroceles result from a reaction to testicular torsion, epididymitis, orchitis, or trauma. These conditions are ruled out by physical examination and ultrasound.
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   Be aware that your child might have a communicating hydrocele. A communicating hydrocele means that the sac around the testicl*s (the process vagin*lis) remains open, rather than closing up like it's supposed to. When it remains open, it allows fluid to get into the scrotum, creating the hydrocele.^[18]

   • While the sac remains open, fluid can flow back and forth from the abdomen to the scrotum which means that the size of the scrotum will get larger and smaller throughout the day.
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   Know that your child could also have a non-communicating hydrocele. A non-communicating hydrocele forms when the testicl*s descend as they should with the sac (the processus vagin*lis) closing up around them. However, the fluid that goes into the sac with the testicl*s doesn’t get absorbed by your child’s body, so it gets trapped in the scrotum and forms a hydrocele.^[19]

   • This type of hydrocele usually disappears within the first year of a child’s life. However, in an older child, it could indicate a more serious problem, and should be seen by a doctor. If your child was born with a non-communicating hydrocele that doesn’t disappear within one year, ask your child’s doctor to check the hydrocele again.
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   Talk to the infant’s doctor or pediatrician. Although it is usually nothing to worry about, if an infant has a hydrocele that your doctor has not already addressed, you should talk to them about the hydrocele, especially if the baby is over one year old. This is because it could indicate a more serious problem.^[20]

   • Take note of when you first noticed the hydrocele, whether or not the child is experiencing any pain, and anything else that could be related to the hydrocele.
   • A majority of the hydroceles resolve in newborns by one year of age. Surgical intervention is warranted in those that do not resolve after one year, those that are communicating hydroceles, and those that are idiopathic hydroceles that are symptomatic.

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