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How to know if you have crohn’s or ulcerative colitis?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

Doctors are switching between whether I have Crohn’s or ulcerative colitis, based on the response to the treatment and medicine. I started Humira last month, but it has come in for my second round, and it is already a month late. I do not know if that worked or not since I am off schedule.

The last week, the area around my rectum, which is very raw, has swelled up. It is around where I have the seton in from a fistula. Last week, I had nothing but liquids. Every time I go to the bathroom, the area expands, causing excruciating pain. I am currently on Imodium and Flagyl. I have taken Advil and Tylenol. Nothing has reduced the pain.

Please help.

Answered by Dr. Ajeet Kumar

Education:

MBBS

Professional Bio:

Dr. Ajeet Kumar is a dedicated Physician specializing in gastrointestinal and liver disorders. He focuses on diagnosing and managing a wide range of digestive conditions with a patient-centered and evidence-based approach. His clinical interest includes promoting long-term digestive wellness through accurate evaluation, timely intervention, and personalized care, ensuring patients receive comprehensive support for their overall health and well-being.

This doctor is not available for online consultations on the platform anymore.

Hello,

Welcome you to icliniq.com.

I know you must be very upset about your ongoing condition. Your symptoms suggest that you have Crohn's disease, not ulcerative colitis. Humira and biological medications like this work for a while before losing effect until the next dose. So yes, if the interval between two doses is extended, the patient can develop flare in the interval period.

The symptoms you mention may be of a mild to moderate intensity flare but can be secondary to infections, the Clostridium difficile infection, which is common. Did you not mention that the pain in the area of where you have seton is new or occurring before as well? And when did you have seton for fistula?

The swelling you mention can be an evolving perianal abscess due to active luminal disease. The abscess formation is the first step in the formation of the fistula, which is an end result due to rupture of abscess from both side-lumen on one side and skin on another side. So I am afraid you may have this.

Flagyl is good if taken for a long time to treat perianal disease, but you did not mention for how long you have been using this. For now, you can continue this and get yourself examined by your physician to look for evolving abscesses. Adalimumab (Humira) works well for the perianal disease but make sure you need to increase the frequency and do not disturb the schedule.

I hope this will help.

Take care.

Medically reviewed by Dr. Sneha Kannan
Published At May 21, 2020
Reviewed At June 8, 2026

Education:

MBBS

Professional Bio:

Dr. Ajeet Kumar is a dedicated Physician specializing in gastrointestinal and liver disorders. He focuses on diagnosing and managing a wide range of digestive conditions with a patient-centered and evidence-based approach. His clinical interest includes promoting long-term digestive wellness through accurate evaluation, timely intervention, and personalized care, ensuring patients receive comprehensive support for their overall health and well-being.

This doctor is not available for online consultations on the platform anymore.

Education:

BDS

Professional Bio:

Dr. Sneha Kannan is a skilled Dental Surgeon with expertise in providing general dental care, including scaling, fillings, and preventive treatments. She does oral surgery procedures such as extractions and minor surgical interventions. She does procedures in restorative dentistry, including crowns, bridges, and dentures. She is an expert in doing endodontic treatments such as root canal therapy. She is well-versed in doing procedures in cosmetic dentistry, including teeth whitening and smile correction. She can provide pediatric dental care for children’s oral health and preventive treatments. She promotes oral hygiene awareness and preventive dental practices.  

This doctor is not available for online consultations on the platform anymore.

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

Education:

MBBS

Professional Bio:

Dr. Ajeet Kumar is a dedicated Physician specializing in gastrointestinal and liver disorders. He focuses on diagnosing and managing a wide range of digestive conditions with a patient-centered and evidence-based approach. His clinical interest includes promoting long-term digestive wellness through accurate evaluation, timely intervention, and personalized care, ensuring patients receive comprehensive support for their overall health and well-being.

This doctor is not available for online consultations on the platform anymore.

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