Penis Burns After Sex, What's The Matter?

Generally speaking, it is not normally a symptom or sign of a sexually transmitted disease or serious sexual health problem if your penis burns after sex. However it is something that you should consider consulting your doctor about if you feel comfortable discussing such a sensitive issue with them. Broadly speaking, you should not panic too much about the problem if your penis burns after sex. However it is still something you should research in an attempt to understand the reason.

A common cause of such a problem can be a reaction to the pH level of the woman’s vaginal secretions.  The pH of a woman’s vaginal secretions will vary over the course of their monthly cycle. It is normally acidic, but it can vary due to hormone levels such as oestrogen and also due the presence of bacteria.

The problem might also occur if you are not well lubricated when having sex. Alternatively the problem could be occurring due to a yeast infection.

It has also been stated that it could be a sign of a prostate problem (unrelated to sex) if you find that your penis burns in this manner after sex.

In short, there is no simple way of diagnosing the problem as there are a variety of possible explanations for why the penis burns after sex. The best course of action would be to consult a doctor so that you can get a more accurate diagnosis of the issue based on your personal circumstances and experience.

The flippant answer to a burning penis :do not to go near naked flames. (or should that be go near flames naked?)
on a more serious note it could be anything from a small infection to acidity of your girls vaginal secretions. The abrasions you mention may be due to overdoing things a bit and are quite common for young men when they have a vigorous sex life. They also occur if the woman is not very well lubricated, easily dealt with by foreplay or lubricant gel. If you choose to use gel make sure it is safe with condoms, many are not as oil based lubricants very quickly destroy latex.
If you attend a clinic for STIs be sure that your partner also attends; if there is any infection you are both likely to have it and some of them have much more serious consequences for women than men. Don't delay and use a condom everytime until his is resolved, especially if you have more than one partner.

Yes it is not a normal thing which you are telling. It can be a sexually transmitted disease. I can't tell you completely here as it need diagnosis. Please do consult a doctor and give him complete details.

Yeast infection.

I am not a doctor dude bit I think you have an STD of some sort. I would go to the doctor as soon as possible. It is for your safety