Sensitivity to your penis is normal. But it's also possible for a penis to be too sensitive. An overly sensitive penis can affect your sexual life.
Soaps and other hygiene products are more likely to irritate the sensitive skin on and around the penis. Using gentle, hypoallergenic soaps can.
Many men consider the underside of the glans (head) of the penis and the underside of the shaft to be most sensitive to sexual pleasure.