How can I get better blood flow to the penis and make it bigger/thicker?

Blood flow is critical to erectile function! That's why not smoking and maintaining your vascular health through diet and exercise is so important. But if you want a permanently bigger, thicker penis the safest and most effective way is with dermal fillers.

How do u make it bigger and thicker because I want to go from 3 and half to 6 and a half to 7in?
If your penis is short because it is buried in the pubic fat and skin, then by removing the skin and fat the penis can be "longer" Normally, up to 1/3 of the penis can be behind the pubic bone. The only part of the penis visible and useable is the part in front of the bone. The penis is held behind the bone by suspensory ligaments, which can be detached thus making the penis appear longer and "more" of the penis is usable. The average increase of length by a minor surgery is 1 inch.
It is unrealistic to expect an increase of more than 3 inchs

Victor Liu, MD

The Prometheus procedure stimulates the body to grow collagen tissue; once formed, this creates a permanent increase in girth size. To support the new collagen, your body grows new micro blood vessels which leads to improved blood flow.

Great question. Of course there are medications that improve circulation to the penis like sildenafil. However, if you are looking for a permanent solution then I would consider a fat transfer along with platelet rich plasma, also refer to S.T.I.F. This procedure takes about 1-1/2 hours and is performed under local anesthesia. Fat is obtained from generally the abdomen or flanks and injected into the penis along with platelets from your blood to improve the girth and some length. It is a safe and effective procedure that does not rely on foreign bodies such as prosthetics.

Achieving better blood flow and enhancing size can be addressed with regenerative therapies.

For increasing girth and modest length, advanced injectable treatments stimulate tissue regeneration and collagen production. While dramatic changes like going from 3.5 to 7 inches aren’t possible, realistic gains of up to 1–2 inches in length and 0.8–1.2 inches in girth can be achieved. A consultation with a qualified specialist can guide you to the safest and most effective options tailored to your goals.

Platelet-Rich Plasma (PRP) injections (P-Shot) and Low-Intensity Shock Wave Therapy (LI-ESWT) improve vascular function and support erectile performance.

PRP injection (P-Shot) and Steem cell injection (P-Steem) are useful to provide more blood flow to the penis and increase sexual performance. But its effectiveness for length and thickness is very low. Penis enlargement surgery is required for this condition. My suggestion to you is to have Iron Man surgery.

Increasing blood flow to the penis will increase size during an erection. I recommend that you get an evaluation to see if you are a candidate for the PRP-injections to the penis as well as Low-Intensity Shock Wave Therapy.