Hello Welcome to HCM.. I thank you for posting your query here and I m definitely going to help you out. I being a surgeon can assure you that there s not a major problem with you.. You should be fine.. I read your question completely and have understood it well enough.. I will analyze all your points and provide necessary explanation and treatment.. 1. Bladder doesn t hurt after masturbation generally.. Most of the times, you experience this pain Because there s some kind of infection process going on. Where? May be bladder, prostate, ejaculatory duct etc.. 2. Broadly termed urinary tract infection, Uti.. This is the only possibility why it hurts you post masturbation or ejaculation. 3. Google says various things, I suggest you not to go by whatever is written there. 4. I have treated so many such cases.. And most of the times it s Uti which causes this problem... 5. Please note the following few things.. You ll be fine later.. A. Get your urine routine B. Urine culture and sensitivity C. Semen culture post masturbation if possible.. This will tell us, what organism is responsible for this infection and also, the antibiotic to be used. Later we can easily tackle your problem and you ll be completely fine.. Presently if you experience severe pain, please take Paracetamol 500 mg. Hope this helps you, in case you need any further assistance, please let me know.. Take care and God bless.