Because it is like your balls.
The underside
The glans are a very fine and sensitive part of the penis when the glans are exposed it will react. it is designed to be protected by the foreskin
The glans penis
The prostate is highly sensitive, though the 'most sensitive' can change from man to man.
Not that I can think of. The penis has what is known as the glans penis at the head which is in it's self an especially sensitive area. however there are no bumps on it and it has a basically smooth surface that is covered with mucousal tissue. in the case of people that are circumcised the glans become less sensitive over time but these effect would be uniform over the whole head of the penis. in the case of the intact penis the glans are covered by the foreskin which has a smooth mucousal inner surface and until it is retracted back over the glans the top of the penis is not overly sensitive. however when the foreskin is retracted (especially at first) the top of the penis is very sensitive> Never the less there is nothing there that would be described as sensitive bumps.
No on the contrary it removes a lot of sensitive tissue and leads to the desensitising of the glans of the penis.
The glans is the 'head' (described as 'bulbous' apparently) of the penis, featuring the meatus which is the orifice/opening of the urethra (non-simultaneous channel for urine and semen) to the exterior. The glans might be (inappropriately in my opinion) referred to as the 'acorn'. At birth, the glans is covered by the prepuce/foreskin, which may or may not be removed by circumcision, which shall of course expose the glans. The glans is very sensitive, supplied with much nervous anatomy.
The foreskin is a very sensitive protective covering that protects the glans. It keeps the glans moist, keeps out dirt, and is also a huge source of nerve endings, which can aid sexual stimulation.
No the glans of the penis is the same on an intact and ona circumcised penis. It is the head of the penis, the pinky purple sensitive area at the top of the penis. The foreskin is the front part of the skin that covers and protect the glans penis from harm as it is a very sensitive part of the body. The foreskin becomes retractable allowing the glans to become totally exposed usually before puberty and sometimes during .
The most sensitive part of the penis is the glans, or head of the penis. It is covered by the foreskin except in circumcised men. with ur mouth
Anything that doesn't have oil will work