HomeAnswersMedical Gastroenterologyperianal abscessDoes a drained anal abscess still need surgery to prevent recurrence?

Can an anal abscess cause a swollen lymph node in the groin?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Ajeet Kumar

Medically reviewed by

Dr. Preetha. J

Published At October 29, 2020
Reviewed AtNovember 3, 2023

Patient's Query

Hi doctor,

I have an abscess. Please help.

Thanks.

Answered by Dr. Ajeet Kumar

Hello,

Welcome to icliniq.com.

I understand your concern.

Please provide me with further details about your case.

I hope this information will help you.

Thanks.

Patient's Query

Hello doctor,

Thank you for your reply.

I had a small anal abscess, which I self-drained. It has now shrunk to a small hard bump the size of a pimple. Will I still need surgery to prevent it from coming back? Also, I have a slight swelling in my left groin lymph node. The swelling seems to have subsided a little over the last week. Can an anal abscess such as the one described cause a swollen lymph node in your groin? If so, will the lymph node continue to stay enlarged? Do I need surgery?

Thanks.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

I understand your concern.

Yes, an anal abscess can cause lymph node enlargement in the groin. Well, that is very heroic of you. It requires a lot of courage to drain an abscess without local anesthesia. I hope it went smoothly. I suggest you take an antibiotic course to prevent its recurrence. Plus, please take a picture and send it to me. I want to see it as an external anal abscess or something that has communication inside. In the latter case, surgery is the treatment whereby the surgeon obliterates the tract, which keeps forming the abscess again. The antibiotic course is:

  1. Tablet Ciproxin (Ciprofloxacin) 500 mg twice daily for five days.
  2. Tablet Flagyl (Metronidazole) 400 mg thrice daily for five days.
  3. Additionally, do a sitz bath with any available antiseptic.

I hope this information will help you.

Thank you.

Patient's Query

Hi doctor,

Thanks for your reply.

I am sorry for asking you to look at this. It is a sort of an embarrassing photo. Anyway, I also have a lot of itching in my anus opening, which has subsided but is that normal? The image is not great, but without feeling it, the abscess is relatively hard to see. Almost unnoticeable unless felt. Are you reasonably sure of the lymph node swelling from an abscess? All the articles I read do not mention this as a symptom, and I am concerned, is it cancer? I should also say the draining happened two weeks ago. Was I told not to take antibiotics unless it flared up? I have an Amoxicillin prescription.

Thanks.

Answered by Dr. Ajeet Kumar

Hi,

Welcome back to icliniq.com.

I understand your concern.

Well, as a rule of thumb, that abscess needs drainage and antibiotics, if it has been more than two weeks since drainage and you did not have constitutional symptoms such as fever, then you can avoid taking antibiotics. Lymph nodes can enlarge in infections. The perianal area drains into perineal lymph nodes and groin lymph nodes.

I hope this information will help you.

Thank you.

Patient's Query

Hi doctor,

Thank you for your reply.

Can I ask a few more questions? I had a perianal abscess, which was mildly swollen. Do you remember? Three weeks ago, I was able to pop it, which released a small amount of pus and blood. Since then, it has healed over and now is a small hard lump the size of half a pea. A week ago, I noticed my left groin had an enlarged lymph node. The enlargement is small pea size and only one. The swelling has subsided a little, but it is hard to tell. When I press the node, it does not hurt. I have also noticed that my testicle area will occasionally hurt like I was kicked there. Not as bad as a kick, but a dull pain seems to arise from that area. I have since been prescribed a round of antibiotics. I have been taking them for three days, and the node has not gotten smaller, nor has the remaining small, hard abscess bump. I will be getting a CT scan in a few weeks and an MRI for the abscess in a month, but the waiting is hard mentally as I had testicular cancer 15 years ago. There are no swelling or bumps to report on my festivals or scrotum.

Should a mildly swollen node hurt when pressed? Should it move quickly? Should my node be getting smaller with antibiotics? Will antibiotics heel the abscess that I have now, which seems to be just a tiny hard lump? Do mildly swollen lymph nodes cause the type of testicle pain I described? Would it be a bad idea to cut open the hard bump and try to drain and clean whatever remaining bacteria is left me?

Thanks.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

I understand your concern.

Yes, they can hurt if pressed. The lymph nodes in the groin of that small size are frequently found in humans. That does not mean that they are infected or cancerous (tumor). The lymph nodes can reach a tennis ball size smaller than that in infectious and cancerous conditions. A node may get smaller with antibiotics. But that small-sized lymph node does not change much in size with anything. As said above, it is common to have groin lymph nodes in humans without infection or cancer. Yes, the antibiotics will heal the abscess you have now, which seems to be just a tiny, hard lump. They will always work to clear the remnant infection and thus decrease the abscess size. No, I do not think that mildly swollen lymph nodes cause the type of testicle pain I described. You describe the testicular pain as being due to tight undergarments or maybe because of overthinking (this happens). If the pain intensity is one to two on a scale of one to 10, I suggest ignoring it merely. It is a bad idea for you to cut open the hard bump. It is not wise to perform this kind of thing yourself. It is not necessary. Surgeries are never required for such a small abscess. Pinching with extravasation of the pus, followed by antibiotics, is all that is needed. And you see, you already have done this way.

The size of your lymph nodes is nearly ignorable. Believe me. However your testicular cancer history concerns me, but I want to know if you have undescended testis.

  1. How did the surgeon remove that tumor via laparoscopy or laparotomy (completely opened-up abdomen)?
  2. Did you receive chemo or radiotherapy?
  3. Did the cancer spread to other parts of the abdomen, like abdominal lymph nodes?
  4. Did they do follow-up surveillance with CT (computed tomography) or MRI (magnetic resonance imaging) of the abdomen?
  5. What were the findings in the last CT or MRI report?

These questions are necessary to establish to know whether it was completely cured or not.

I hope this information will help you.

Thank you.

Patient's Query

Hello doctor,

Thanks for you reply.

It helps to relieve my worries a bit. I cannot tell you how exhausting my thoughts have become. My testicular cancer was removed by taking my left testicle out. I did chemo, but there was no evidence that cancer had spread. I choose to do chemo as a precautionary step, and I decided to do it. It was 15 years ago, and I was young and healthy, so it was recommended. Since then, I have numerous follow-ups with no signs of cancer. I have not had the CT or the MRI for this issue yet. My last question is if lower back pain can cause a groin mode to inflame like mine. My lower back has had sciatica-like pain. However, this is not uncommon for me, but I worry about everything I suffer from post-traumatic stress from testicular cancer when I was younger.

Thanks again and again for your advice.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

Good to hear from you. I must tell you that it is all my pleasure that I have provided you some advice that can help. I can understand that. But, a CT or MRI are required in the initial post-operative and while receiving chemotherapy to see the response. They are not required at the moment. And thankfully, it has been 15 years since your diagnosis and treatment; it is almost unlikely that you would go on to develop recurrence. Since most of the recurrence occurs within the first five years of the treatment, I am no more concerned about it anymore. And so should you be. And I do not think sciatica can cause this lymph node. If you are concerned about this lymph node, why do you not take pictures of it and upload it as I can see that? The size you mention previously does not seem to be a pathological one; meaning does not appear that it is diseased as I have said previously that groin lymph nodes tend to be palpable in humans commonly. A slightly palpable lymph node even tender does not make it diseased secondary to a severe disorder. Infections are by far the most common cause of enlarged somewhat and tender lymph nodes. And I believe that a small perianal abscess seems to be a potential cause for it as well. Since you already on antibiotics, I think this will subside further in its size, both the lymph node and abscess.

Patient's Query

Hey Dr. This all helps tremendously with my anxiety. There isn’t much point to a picture as it really would not show anything. When gliding my fingers across that area there isn’t a bump, only when I press down a bit can I feel the small enlargement so a photo probably would tell you much. I’ll keep you posted if anything should change for the worse and in the meantime I’ll do my best to not think about the issue! Thanks

Answered by Dr. Ajeet Kumar
Hello dear Robb. It is great to hear from you again. Yeah I agree with your thought. This is not much which can be captured. Since most of these tiny abscess, rather I would say a follicle of hair which gets inflammed, usually vanish away after discharging some pus. And that is in your case. I am here to assist, anytime you want. Its afterall my pleasure to be of some support to you. regards

Patient's Query

Hey Dr. Adjeef, Hope all is well. So the last query wasn’t my actual question it was a response from our last meeting. Pls see below for my update. I await your opinion. A recap on who I am and my ongoing issue... My name is Robb Harding I live in Vancouver Canada. 45 days ago I was diagnosed with an anal abscess which I popped my self. My family dr said it would most likely require surgery and said to monitor it and let him know if it acts up. On the same appointment I let him know about a single swollen lymphnode in my groin which he felt. He seemed concerned and though it would be good to have a ct scan. I have had testicular cancer 15 years ago but he didn’t feel that was the issue. However to my surprise he didn’t seem convinced the abscess was the cause of the lymphnode being swollen, which is very concerning to me. Since then I spoke to two other drs who seemed to think the node was a result of the abbcess? A week later my dr called me as he knew I went to emergency and thought he should reach out and see if he could provide some reassurance. He ended up giving me a 10 day cycle of antibiotics which he didn’t feel I needed but gave them anyway. The hope was the swollen lymphnode would go away. It didn’t. The node is round and only 2-3 mm in size. It hasn’t seemed to get larger and isn’t painful to touch. Since a few weeks ago I have felt pain in my lower back, deep glute, and especially in my hip when rotating outwards. I don’t believe I have lost weight and haven’t had any symptoms such as night sweats or fatigue. Mostly muscle pain which I attribute to sciatica which I have had in the past. Last week I had a ct scan and the nurse called to say there is no cancer! However the node is still enlarged. I will be speaking with my dr on the 19 however the stress of this is overwhelming. I’d ask you opinion and I have the following questions? 1. How good are ct scans at finding cancer of the lymphnode in the groin area. 2. Could my back and hip pain be associated with the lymphnode? 3. The anal abscess has almost completely healed. I can still feel a small amount of swelling maybe 1-2mm in size. Do you believe the lymphnode is swollen due to the abscess still at this point? 4. I’ve read that lymph nodes should be soft and painful to touch but mine is more hard and not painful, and I can move it a little but it’s hard to tell if it is totally free of attachments? 5. What do you believe my best course of action is? Thanks Robb
Answered by Dr. Ajeet Kumar
Hello dear Robb. I understand your concerns and Can also understand the reason for your anxiety. The rule of thumb is any lymph node which is more than 1 cm in size is a concern for everybody..Any lymph node less than this size, with some exceptions, is not a alarming thing. The exceptions are when they are multiple and scattered across whole body, or matted, or present in vicinity of an mass which is supposed to be a cancer.. Now I probably have commincated you earlier that inguinal lymph nodes of that small size are usually present in human without a underying serious thing. Plus they can enlarge in case of infection in locoregional area. The small absecess/folliculitis was most likely the explanation of that enlarge inguinal lymph node as well. Well, out of curiosity and concern, a doctors choice of giving an antibiotic and getting a ct scan was not a bad idea. Now to answer your concerns. 1. Ct scan is good investigation to detect any pathological enlargement of the lymph node or a locoregional pathology such as cancer. So if ct scan is normal then it is completely normal over there. 2. No. Nor nerve pain or sciatica can cause this. However a gluteal abscess, which is accumulation of pus in between two layers of glueteal muscle can cause lymph node enlargement..But if this were present, then ct would have picked that. Secondly severe pain and fever are hallmark symptoms which you do not have pain. 3. Yes I still beleive this. 4. Attachements and consistency is something which look when the size of lymph node is at least more than 1 cm. That small size lymph nodes actually dont draw out attention..For the reason I explained in point 1, they are completely ignorable thing. With that small size There is no meaning of hardness. The lymph node is otherwise hard in consistenty because they are made of hard tissue. They are soft , rubbary and painful in conditions of infections because that make them tender, inflammed and some time accumulate pus. 5. Do not worry. there is nothing serious in you. And the nurse has already broke you the good news. Collect the ct scan report and share with me and your physician there..I am sure you do not have any thing to worry..

Patient's Query

Hello Dr. Ajeet, Hope all is well and your staying safe. I spoke with my family Dr this week over the phone due to Covid and he was surprised the ct didn’t pick up and abnormalities based on the fact he felt a lump. Therefore, he has asked I come in and see him again. He also said that he didn’t believe this to be associated with a lymphnode which again has me worried and again back on google researching other potential causes. 17 years ago I had told you about testicular cancer I had. Do to the cancer I had my left testicle removed. The incision is along the same area the 2-3 mm hard lump is. Therefore I’m wondering if it could be some sort of hernia? Specifically incisional hernia? I’ll ask about getting the ct scan but I’m not sure that’s something normally given to patients? Also, my anal abscess seems to have completely healed. The abscess which was once at least 1 cm large and seemed fairly rooted is now nothing more then a very small bump the size of a grain of salt. Questions: Do you think this hard lump along my inner thigh and abdomen area could be a hernia of any sort? I was told I would need surgery for the anal abscess but providing that it has healed to the extent it has will surgery still be necessary? Thanks Robb
Answered by Dr. Ajeet Kumar

Hello. good to hear from you. I am good and staying safe at home. I hope same at your side. Well you probably remember, I was never in favor of going for surgery for that tiny peri anal abscess. since you attempted to drain your self, and which was successful, and followed by use of some antibiotics, essentially obsoletes any need of surgery what so ever. Yes incisional hernia can occur near the previous scare. Up to now, I had an impression that it is simply swollen lymph node. Given the size of lymph node which you described does not seem to be an alarming thing, since small lymph node of that size (with some degree of ternderness if they are infected) is a common in humans. Incisional hernia even has a benign course, meaning it is not a cancer, and nor it will progress to cause you problem. Close examination of the swelling is a best guide to proceed with. Since only examining the lump would make clarification about it origin-an incisional hernia, or lymph node, or an inguinal hernia not necessarily of the incisional one. Why you dont share with the picture of this swelling now? take multiple photos from front and side, in bright room. I would be able to guide you more specifically on this.

Patient's Query

Hey Dr. Thanks again for your prompt response. Yes we are practising social distancing as much as possible here in Vancouver! Attached are a few photos. The actual bump you can’t see unless you press on the area so I made a black mark where the lump is. The incision I had done 17 years ago seems to be just above this area you can see the scare line. However, I also feel this is where my lymphnode is? Very confused in this issue? Pls help. Thanks

Answered by Dr. Ajeet Kumar

Hello Good to hear from you again. I have seen the pictures you attached. I can see the scar of previous surgery which is above that lump which you feeling. On gross look it does not seem a swelling at all. Swelling if present, often appear as a significant bulge. Which you do not have. I am sure it will be only palpable to you on examining with hands. And this, to me, does not seem to be a problem. They may be a tiny lymph nodes which are often palpable every other man. I do not suggest you should have any more CT (computed tomography) or MRI (magnetic resonance imaging). Your GP are not doing it properly otherwise they would have clarified you earlier. Small bulge appearing in the vicinity of the previous scar and commonly appear when you cough, or lift a heavy weight, suggest hernia. See if this bulge get prominent when you do strain, cough, or life heavy weight, this is called a cough impulse, and this suggest hernia. again hernia is a Bening thing and You should not be worried about that.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Ajeet Kumar
Dr. Ajeet Kumar

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