Hello, I myself is doctor. I am 39 years old male...

How to treat weak erection

it may be due to psychological issues or stress which can be treated by follow up with the psychiatrist and anxiolytic  could be given and drugs lihe sildenafil or vardenafil an be given to strengthen and prolong the erection time

How to diagnose weak erection

you should be assessed by the psychiatrist to exclude psychological causes of weake erection and urologist should assess you to exclude the presence of varicocele which cause decrease in the production of testosterone and blood level of testosterone and free testosterone should be assessed

what is the causes of weak erection

stress and depression
low testosterone levels
varicocele

What is the symptoms associating weak erection

in varicocele there will be pain in scrotum
in  low testosterone there will be decrese in the size of penis and testes
there may be premature ejaculation

advise

you should be assessed by the physician to do the lab tests and give the treatment