Why does my ejaculation feel painful and include blood?

It's perfectly alright for a penis to have a slight bend. The truth is that most of the time, this is nothing serious, especially when there is no pain or other problems. This bend could be the result of the arrangement of your tissues or how you use it. However, if your mind is not bothered and no issues are present, then there is no need to stress. 

It's normal for a clear fluid called pre-ejaculate to come out of the penis after urination or during arousal. This fluid can contain a small number of sperm and might be more noticeable when you're talking to a girl or feeling sexually aroused. 

Generally after surgery, it's recommended to avoid any activities that can put strain or pressure on the surgical site to allow for proper healing. Engaging in sexual activities including masturbation could potentially impact the healing process, especially in the early stages of recovery. Consult your surgeon who performed the surgery for better guidance.

You may have a condition called varicocele when the veins in your testicles are enlarged like the varicose veins in your legs. This can cause a scrotum that is swollen or heavy to feel. The epididymis is a coiled tube located behind the testicle, and it can also become inflamed, leading to pain and swelling. Varicoceles and epididymitis don't usually lead to serious problems, but it's important to see a doctor to confirm the diagnosis. The doctor might recommend wearing supportive underwear, taking pain medication, applying ice packs, and sometimes surgery in severe cases.

I don't recommend use of tadalafil without prescrition from a doctor. And if you are not diagnosed with any sexual dysfunction, it is not good to use medications. Tadalafil is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. Only a qualified doctor can make an accurate diagnosis and prescribe the best treatment for you.

Pain in your left testicle when touched could be due to various reasons such as epididymitis, varicoceles, or a spermatocele. It’s crucial to consult a urologist for an accurate diagnosis and treatment.