it could be many things, best thing to do is to go and see your doctor.
Both supply to the scrotum in males, but the genitofemoral supplies to the anterior surface of the thigh while the illoinguinal nerve supplies the superior medial aspect of thigh.
The Bilateral Abdominocrural Creases is located between the thigh and abdomen
It is common for the penis and scrotum to be a darker color than the upper thigh, but not typically darker than the lower thigh. The darkening of the penis and scrotum correspond with changes that occur during puberty. If you are going through puberty, this is a natural occurrence, but if you are pre-pubertal or an adult, and are having a recent change in the color of your skin, you should have it evaluated by your doctor to rule out some pathologic conditions.
Thigh
They are the same thing. Sounds like you need some anti-fungal cream or spray.
Inguinal hernia
If it is below the inner thigh, it has to be the lower leg and if about the knee is the thigh, itself. There is no name for what you described.
Your thigh muscle is called your Quadricep.
No. Thigh in voluntary. You can move it as per your will.
no
no
From Zeus's thigh.