What Are the Common Causes of Foreskin Swelling?

Using urinary catheters can cause foreskin swelling.
Balanitis is an irritation of the foreskin that can cause foreskin swelling.
Phimosis is the most common type of foreskin swelling, which occurs when the foreskin is so swollen it cannot be pulled back over the glans of the penis.
Foreskin swelling might be caused by an allergic reaction to condoms.
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  • Written By: Marjorie McAtee
  • Edited By: W. Everett
  • Last Modified Date: 08 March 2015
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Foreskin swelling can be a symptom of phimosis, paraphimosis, or balanitis. There are a number of factors that can cause or contribute to swelling of the foreskin, including infection, poor hygiene, contact dermatitis, and sexual activity. Foreskin swelling doesn't always require treatment, but it can, in some cases, constitute a genuine medical emergency. Swelling of the foreskin affects only uncircumcised men and boys.

One of the most common types of foreskin swelling is phimosis, which occurs most often in infants and boys. In phimosis, the foreskin becomes so swollen that it cannot be pulled back over the head of the penis, or glans. Poor hygiene and infection, including yeast infection, are among the top causes of phimosis, especially in infants and children. Phimosis can also occur after sexual intercourse or masturbation. Phimosis is not generally considered a medical emergency, but it can cause problems with urination. Phimosis sometimes goes away on its own, but if symptoms do not resolve within 12 to 24 hours, medical care is usually advised.


Paraphimosis is considered a far more serious condition and immediate medical treatment is usually recommended for this problem. Paraphimosis occurs when the foreskin gets stuck in a retracted position, and cannot be pulled back down over the glans. Paraphimosis is generally considered a medical emergency, since the swollen, retracted foreskin can cut off the blood supply to the glans. Without treatment, paraphimosis can lead to gangrene in the penis, and the penis may need to be amputated. Paraphimosis most often occurs after sexual intercourse, masturbation, or erection. It can also occur due to poorly executed circumcision, injury to the foreskin or glans, or use of urinary catheters.

Balanitis is an irritation of the foreskin that can cause foreskin swelling. Poor hygiene can contribute to balanitis, since it can allow bacteria to thrive under the foreskin. Yeast infections and sexually transmitted infections can cause balanitis, as can allergic reactions to soaps, spermicides, and fragrances. Dermatitis can also lead to balanitis, since it can leave the foreskin irritated. Symptoms other than foreskin swelling usually accompany balanitis, such as itching, discharge from the urethra, or a rash.



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Post 15

My penis foreskin has been swollen like a rubber band for the past week. It was first time I was able to retract my foreskin completely but now I'm worried how long will it take for the swelling to go away.

Post 14

My penis has been swelled for four months. I am in the Gulf and I do lots of hand practice, so tell me about penis swelling and what I should do now,

Post 13

I’ve had it several times lately. I have battled jock itch, or that’s what they say. It has been terribly bad for the past two years. I almost always am trying a new cream or powder and have to fight it every day. I bathe daily, thank you.

I have had four boils in this area on two different occasions a month apart. I had them lanced. I had two on my inner thigh and two in my butt crack near my anus. I now have two small ones on my perineum that they did not lance but gave me Bactrim to take by mouth. The boils are small now and not inflamed. My rectum is itchy and raw and


My perineum and scrotum and lastly, my foreskin are very swollen and red and I have a light rash on my penis head. I also had a bladder infection with this. I went to the doctor last week and got a scrip for Bactrim and I am taking that now. It has helped the bladder infection but I’m using Lotrimun Extra on the itch at the scrotum and Neosporin and Prep H on the anus and perineum. I’m not making a lot of headway here on healing. I’m going to the Doctor today at 3:15 hope we make some progress. I am going to ask for complete blood work and check for diabetes. After reading all of the comments here, it sounds like it might be a yeast infection instead of a fungal infection, thus the reason the Lotrimin Extra is not healing it. Pray for me. I’ll pray for you. A person really needs some relief from an itch and swelling down there.

Post 11

I've experienced a swollen foreskin for the first time. After sexual intercourse last night, I noticed my penis got bigger than normal. There was no pain and no discharge -- just swelling of the foreskin. What is the cause of that?

Post 10

Can swelling also be caused by masturbation alone or would it have to be pretty rough?

Post 9

Phimosis doesn't exist as a diagnosis before puberty. If a doctor diagnoses that any younger, then he's not educated properly (and many American doctors are not). The foreskin isn't supposed to retract before puberty, and it is normal for it not to retract even into adulthood. Paraphimosis in a child is caused by doctors who don't know better than to retract the foreskin. It's like tearing the hymen of a girl.

Post 8

I seem to have paraphimosis, but I noticed it right away before the swelling got big and returned the foreskin to its normal position. I don't know if I need to see a doctor or if I will be OK. Any advice?

Post 7

My five year old son, has been having problems with his penis. It was circumcised at birth. Lately, it has been getting swollen and bruised looking and painful to touch, then minutes later it gets better. This has been going on for about six weeks and happens about once a day. Any clue on what the problem is?

Post 6

I have had pains on my frenulum for many years now and still the pains persist. Please advise me on the best medication to cure this issue.

Post 5

@anon250507-- That's possible if you have thrush or a bacterial infection there. But it's not as likely if your diabetes is under control with insulin or medication.

Basically, if your blood sugar is very high, the sugar can end up in your urine. And bacteria or fungi tend to thrive on sugar. So the sugar in your urine might be triggering an infection on your foreskin which causes swelling and other symptoms.

It would be best to see your doctor and make sure your blood sugar is under control. Also make make sure you keep your foreskin clean. Don't allow urine to stay on it.

Post 4

@anon281723-- Did you masturbate the day before?

I had this happen to me once. I still don't know how or why it happened but it was the morning after I masturbated. My foreskin was extremely swollen, not very painful but I couldn't pull it back. So I guess yours is a little different.

I would wait a few days to see if the swelling will go down on its own. If it doesn't go down or if you have severe pain or anything like that, definitely go see a doctor. Meanwhile take some aspirin and you can apply some ice (with a towel in between) to help decrease the swelling. My swelling went down on its own in a couple of days. And the aspirin and ice helped a lot too.

Post 3

My son had severe paraphimosis when he was just a few days old. He couldn't even urinate and was crying all the time. The doctors decided that since he's so young, it would be best to circumcise him.

We're not sure why it happened, probably due to an infection. But we couldn't risk him developing gangrene and other serious complications so we just had him circumcised. I'm glad we did because he didn't have any problems after that. He's now five and a very healthy boy.

Post 2

My penis's foreskin part, corona and frenulum are swollen. The frenulum is more sensitive and there is now a little scar on my frenulum. The skin can be pulled back with no problems, and I didn't have sexual intercourse. It just started one day. Should I go see a doctor? I'm 22.

Post 1

I am a diabetic. When my sugars stay high for a while, I get paraphimosis. Is this possible?

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