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Office
Brooklyn, NY
Phone
Practice website
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Aetna Life Insurance Company
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HIP Health Plans
Elder Health, Inc
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About
SpecialtiesDoctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.
Urology
Languages spoken
Russian
Doctor Q&A
106 Answers
63 Agrees
The number of answers this doctor has agreed with.
A 31-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Varies : Every physician has his/her own fee schedule. This will depend on physician's expertise, accolades and recognition. It may also vary depending on whic... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 40-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Rare: Kidney stones are usually asymptomatic (no symptoms). Once they drop into the ureter, pain, voiding dysfunction, etc may ensue.
Created for people with ongoing healthcare needs but benefits everyone.
5.3k viewsReviewed >2 years ago
A 45-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Unable to get hard: Ed is sexual dysfunction characterized by the inability to develop or maintain an erection of the penis during sexual performance. You need evaluation... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 29-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Need clarification: Prior to any circ it is important to take down penile skin adhesions. A bit hard to described, but all newborns have part of the foreskin fused to the... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: Hernias by themselves may be asymptomatic (produce no symptoms) or cause slight to severe pain, or just present as a bulge (especially at the groin). ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 25-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Usually not: Azoospermia is a lack of sperm in the semen. 2 types: obstructive and unobstructicve. You need to be seen by an infertility specialis to see if you... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Yes: Severe testis pain can be a serious condition. If a torsion of the testis is missed then that may lead to testis loss. The incidence of testis torsi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 26-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Yes: But other factors must be considered. Sperm count anywhere from 20 million per milliliter to 150 million is considered normal. Motility, morphology, ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: Low testosterone or t hypogonadism is common. A t level <300 is usually considered hypogonadism and can lead to symptoms such as low libido, decrease... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 28-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Premature ejaculatio: This could be a sign of premature ejaculation, which occurs when a man has an orgasm sooner during intercourse than he or his partner would like (prem... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 33-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Follow Recommendatio: Follow your doctors' recommendations. Make sure you keep high blood pressure and diabetes under good control as well as other concomitant diseases. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 27-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not clear: After your surgery? No for at least 6 weeks of healing, but ask your surgeon. Those exercises can increase the intraabdominal pressure and push on t... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Probably not: The pill that turn urine orange is called Pyridium (phenazopyridine) or Phenazopyridine which relieves urinary tract pain, burning, irritation, and di... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 31-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Why do it?: Doctors now caution anyone scheduled for surgery to minimize drinking in the weeks prior to a procedure, with no drinking the safest course of action.... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 69-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
I'm confused: I would love to point you in the right direction. I dont know why you need a ct. Sounds like they have problems placing a Foley catheter and you wer... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not really: Miracles can happen but unless you are having unprotected sexual intercourse and your partner ejaculates inside, this scenario does not seem likely.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 29-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends. : A hydrocele is a benign condition and it seldom causes any symptoms other than a large bulge in your pants and some heaviness. If it grows bigger and ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 34-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Idiopathic Infertili: Idiopathic or unexplained infertiliyty. Couples with unexplained infertility may have subtle problems with egg quality, tubal function, or sperm func... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 44-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Temperature is key: Temperature and media to preserve is key! sperm ejaculated into a woman's vagina can live in a woman's cervical mucus for three to five days. Sperm e... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 35-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
U/A C&S: Urine tests will include urinalysis (u/a) and a culture & sensitivity (c&s). Your doctor wll be looking for signs of infection and high glucose in th... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 35-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not really: Alcoholism can have an effect in your liver but also affect your immune system.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 48-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Yes it can: But only in very advanced metastatic cases
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 45-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Yes: The african american men are at higher risk and should start with psa eralier than 50.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 36-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not really: Renal cell carcinoma (rcc) prognosis depends on the stage, histology cell type and nuclear grade. Tnm staging is very helpful. Localized rcc stage 1 o... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 22-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
It only hydrates: It does not treat the infections.The d5nr IV solution is hypertonic solution with the following particular fluid composition: sodium – 140 meq/l, pota... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 43-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: Depends on type of surgery, need for mesh, amount of dissection that needed to be done during surgery and how bad was your bladder defect.
You need... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not to bad: At this most basic level, an erection is considered to be normal if a man is able to maintain his erection sufficiently long to engage in satisfying i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 18-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Infection likely. : You should be seen by a physician as soon as possible. Sounds like an infection and you need professional care. Untreated infections can be life threa... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 30-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Prolactinoma: It can be secondary to a prolactinoma, which is a noncancerous pituitary tumor that produces a hormone called prolactin. This results in too much prol... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Around after puberty: It depends on when a boy finishes puberty. A boy usually finishes puberty between 15 and 17 years old, with an average penile length of 6 inches. By... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 58-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Need more info. : It's impossible for a ct scan or any imaging modality to show low potassium (k+). Many conditions and medications can lead to low k+. A thickened bla... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 43-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Very confusing: Sounds like a paternity dna test may be necessary. Sperm can live up to 4-5 days in the body, contrary to anything else you may have heard or read. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 59-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not to worry: Weight gain gives a man the impression of a smaller penis. As fat accumulates on the lower abdomen, the apparent size of the penis changes. "a large p... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 41-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Check your urine: You should check your urine at the doctors office to ensure you don't have an infection. If an std is suspected, you can get tested without having t... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 44-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
NO: Its a big stone and most likely will require some type of intervention. Rowatinex does not dissolve stones and does not replace surgery as the treatm... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 20-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Infection: You could be having a urinary tract infection (uti). You should have a culture of the urine and if positive for UTI you may need treatment.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 45-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Attraction : May be you have an attraction to her causing arousal which is typically normal. Sexual arousal or excitment is the arousal of sexual desire. A numbe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 19-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
No: It should not. There are many reasons why people have problems while married. This reason, unless is as big as a basketball (and yes I have taken care... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 31-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Not indicated: There is no fda indication for the use of Pletal (cilostazol) to improve erections. It has no effect on the nitrous oxide - cgmp pathway (affected by ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 44-year-old female asked:
Hi sir my mothers serum creatinine lab reading is 3.1, is it causesany heavy problem to the kidneys?
Dr. Ivan Colonanswered
Urology 29 years experience
Renal Insufficiency: Discuss this with her and pcp. This is consistent with renal insufficiency or early renal failure. If pcp is comfortable managing this, is not a pro... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 40-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
6 weeks.: The magic time frame is 6 weeks. I usually leave the stent for 6 weeks.
However endopyelotomy is an ambulatory procedure and you should be able to... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 38-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
A metabolic work-up : The best way to fight stones is to understand your metabolism. I believe that most stone formres should have a metabolic work-up. This should incl... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.3k viewsReviewed >2 years ago
A 46-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: If you are talking about ureter stent, most people can fly right away.
Cardiac and other stents you need to refer to those specialists.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 29-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
NO: An enlarged prostate has nothing to do with prostate cancer. Prostate enlargement may lead to urinary problems, but the size of the prostate may not ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.3k viewsReviewed >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: You need to be more specific, if you ejaculate as soon as you penetrate and your penis looses the erection, you may fit the diagnosis of premature eja... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Usually not a lot: You have to be more specific and need to see a urologist. You shoudl measure your penis while erect.
The mean of an erect human penis is approxim... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 21-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
See your GYN: You may wanyt to consider a vaginitis and you may need treatment. See your gynecologist for further management.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 20-year-old female asked:
Dr. Ivan Colonanswered
Urology 29 years experience
Depends: If you are truly taking your birth control as indicated (withouyt missing doses), you should not need to.
If you have more than one partners (or yo... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
A 34-year-old male asked:
Dr. Ivan Colonanswered
Urology 29 years experience
I am confused: Your question is a bit vague. Kidney stones and eswl do not cause scar in the penis. If you are referring to peyronie's, thi sis not cause by that. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
A 39-year-old member asked:
Dr. Ivan Colonanswered
Urology 29 years experience
No: Rectal bleeding is not associated with prostate cancer, but can be associated with colon-rectal malignancies.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsAnswered >2 years ago
TestimonialsRecommendations and Thank you notes are endorsements given from patients or other doctors.
Recommendations and Thank you notes are endorsements given from patients or other doctors.
2
Recommendations
323
Thank you notes
HealthTap member
Mar 30, 2015
Dr. Colon is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Colon is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thanks doctor my case . I had one sexual relation in my life I found that I have fast ejaculation and ED. What I can even I went to doctor
HealthTap member
Dietry restrictions makes me feel weak. I have calcium oxalate stones. I had consultion with nephrologist. But I'm still not convinced.
HealthTap member
Tks for the info but I was told these hernias could constrict blood flow any vomments
Education & Training
Medical/Graduate school
University of Wisconsin School of Medicine and Public Health, WI
Graduated 1994MD
Awards
Best Doctors 2010
HealthTap Founding Doctor
Affiliations
Brooklyn Urology, P.C.
New York Methodist Hospital
American Urological Association
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