PSA went from 3.9 in November to 4.3 yesterday

First have a PSE test. If it shows presence of cancer, then a 3T MRI will be the necessary next step. MRI is the gold standard for imaging the prostate for cancerous lesions. It delineates things that ultrasound is not capable of. You'll need the MRI in order to have a fusion biopsy to target the area of your prostate to be sampled. The ultrasound and MRI images are fused together in this procedure to increase the likelihood of hitting the lesion upon biopsy. From there based upon biopsy results which yield a Gleason score and Staging, you'll want to know how aggressive the cancer is and how prevalent it was in the biopsy core samples. Tests such as Decipher Prostate or Oncotype Dx will tell you the aggressiveness. The biopsy report itself should tell you the percentages on the more aggressive cancer seen, be it Gleason 3+4=7 or some more aggressive Gleason score. I'd further recommend that you do a deep dive on learning about prostate cancer. The decision for how to treat will ultimately be yours. It's best to be educated on it. I'd recommend you spend some considerable time at the website pcri.org It is excellent and will give you all of the education you'll most likely need. It's tailored for the layman and I found it of tremendous value in helping me understand what I was dealing with.

The PSA is like a check-engine light. Something is wrong; it could be minor or a major problem. I’d suggest to have a biopsy. In my situation, my PSA was 4.2. My biopsy showed cancer in 6 of 12 samples. Ugh.
Good luck with your decision. It a tuff one; however, you’re on the right track!

Thanks & Stats look great, have a question is this widely used in the US. Thanks jeffMar

Get a biopsy. An increase in PSA could mean cancer. I did when my PSA went from 3 to 4 and it was cancer.

This test is relatively new, but is being used by a lot of people. It helps prevent doing a Biopsy when somebody does not have cancer, but has a Gleason score of six.

Damn...are you still dealing with it or did you choose a treatment path and come out clean?

All the advice below is sound
It's early days
But I took a stab at tour PSA Doubling Time w the figures and times you provided. And assuming you first test was Dec 1 and last test Feb 20, that's 82 days. According to a PSA DT calculator, that puts your PSA DT at around 19 months, which depending on your Gleason score coukd put you at a very low risk of aggressive PC.
Need to find out more- but 19 montHs PSA DT is very good news.
Good luck!!

I had surgery. My doctor also took biopsies of 8 lymph nodes. Seven were cancer free; however, one wasn’t! I was disappointed and faced with what was next? I decided to forgot radiation treatment and Lupron shots. This went against the doctors advice. However, my urologist said I could. I had to have my PSA checked every three months and send in the test results. I read a Mediterranean Diet has stop some cancers from spreading. The good news is my cancer had remained in remission for three years. I have felt healthy and energetic. 😊

There is no need to be afraid. What you are saying is normal for your age. If you tell your problems, your doctor will do a PSA test. If necessary, he can do a biopsy, the PSMA test is much more sensitive than an MRI. I am writing these as someone who has had prostate cancer for 11 years.

What is a PCE test?