You must become sexually aroused
A small firm lump under your skin at the base of your penis could be a cyst, but this should be confirmed with a doctor.
I don't know but see a doctor
no only when u get aroused the bone siftens or become firm
This process is known as an erection. It is primarily caused by increased blood flow to the erectile tissue in the penis, specifically the corpora cavernosa. When sexually aroused, the arteries leading to the penis dilate, allowing more blood to flow in and fill the spongy tissue, resulting in a firm and enlarged penis.
that is an erection, it will occur randomly throughout puberty and probably throughout your life and it will almost always occur when you get sexually excited.
The verb form of erect means to build. The adjective form, in the context of men's health, means "firm." The noun form is erection, and that is the process of building, or in the context of men's health, when a man's penis is firm because it is filled with blood, usually because of arousal.
Vet. It could b very fatal. Mines had internal bleeding
Erections occur when the small muscles in your penis, which are usually tightly contracted, relax and let blood start flowing in. The spongy tissue in the penis fills with blood and expands, pushing against the veins and closing them so the blood cannot drain out again. You have heard the saying: it's all about blood flow.
In order to produce sperm a good technique is to masturbate. Stroking the erect penis with a semi firm grip and optional lubrication until reaching climax is the best technique
The scientific word is erection.
A penis skin bridge is an attachment of the shaft of the penis and the head of the penis.
noun - law firm adjective - a firm stance adverb - stand firm verb - to firm