• Kallmann syndrome - Genetic disorder causing decreased functioning of the sex hormone-producing glands caused by a deficiency of a hormone.
• Cryptorchidism - Absence of one or both testes from the scrotum.
• Androgen insensitivity syndrome - A genetic disorder causing people who are genetically male (i.e. XY chromosome pair) to develop sexually as a female due to an inability to utilize androgen.
• Intersexuality - A person who has genitalia or/and other sexual traits which are not clearly male or female.

[edit] Examples of cancers

• Prostate cancer - Cancer of the prostate gland.
• Breast cancer - Cancer of the mammary gland.
• Ovarian cancer - Cancer of the ovary.
• Penile cancer - Cancer of penis.
• Uterine cancer - Cancer of the uterus.

[edit] Examples of infections

• HIV - Infection by the retrovirus known as human immunodeficiency virus.
• Genital warts - Sexually transmitted infection caused by some sub-types of human papillomavirus (HPV).
• Herpes simplex - Sexually transmitted infection caused by a virus called herpes simplex virus (HSV) type 2
• Gonorrhea - Common sexually transmitted disease caused by the Gram-negative bacterium Neisseria gonorrheae
• Yeast infection - Infection of the vagina by any species of the fungus genus Candida.
• Pelvic inflammatory disease - Painful infection of the female uterus, fallopian tubes, and/or ovaries with associated scar formation and adhesions to nearby tissues and organs.
• Syphilis - Sexually transmitted infection caused by the bacterium Treponema pallidum.
• Pubic lice - Infection of the pubic hair by crab lice, Phthirius pubis.
• Trichomoniasis - Sexually transmitted infection by the single-celled protozoan parasite Trichomonas vaginalis.

[edit] Examples of functional problems

• Impotence - The inability of a male to produce or maintain an erection.
• Hypogonadism - A lack of function of the gonads, in regards to either hormones or gamete production.
• Ectopic pregnancy - When a fertilized ovum is implanted in any tissue other than the uterine wall.
• Inhibited sexual desire - A low level of sexual desire and interest.
• Female sexual arousal disorder - A condition of decreased, insufficient, or absent lubrication in females during sexual activity
• Premature ejaculation - A lack of voluntary control over ejaculation.