A medical device to eradicate abnormality is provided. In one embodiment, the medical device includes a needle and an electrode. The medical device further includes a processor to automatically determine a portion of a biological tissue is associated with an abnormality when a sample density of an immediate area surrounding the needle in the biological tissue matches a target density as determined based on one or more of a chemical composition and a pigmentation of the abnormality. The processor calculates a resonant frequency to eradicate a presence of the abnormality based on the chemical composition and/or the pigmentation of the abnormality as determined through one or more of a conductivity, a capacitance, and an inductance of the abnormality. The medical device also includes a signal source to electrically couple the needle with the electrode to form a closed circuit when the needle and electrode contact the biological tissue.