What is a small flesh lump growing on the neck?

Small flesh lumps on the neck are more common in clinical practice, mostly in obese, pregnant women and the elderly. There are three main cases. One case is a small, brown, black or skin-colored protrusion, called dermatophyte; the other case is a slightly larger, pedicled, softer protrusion, called soft fibroma of the skin. These two kinds are benign skin tumors caused by benign proliferation of the skin, generally not malignant, nor infectious, normal will not regress, clinically can be removed by freezing, laser or electrolysis. There is also a case of flat warts, which is caused by human papilloma virus infection, mung bean to soybean size, brown, skin color, smooth surface, slightly irregular shape.