Note: I had a hard time finding information about medical risks for incest and rape. Most sites that talk about incest/rape and pregnancy focus on abortion.
Incest
Source of Information: Answers.com
What Is It?
Pregnancy resulting from sexual contact between the birthmother and a blood relative.
What Causes It?
Sexual contact between... more

Impaired Hearing/Deafness
Source of Information: Beginnings: For Parents of Children Who Are Deaf or Hard of Hearing, Inc.; American Speech-Language-Hearing Association
What Is It?
Hearing loss or inability to hear.
What Causes It?
Congenital causes Maternal diabetes Prematurity ... moreHemophilia
Source of Information: National Hemophilia Foundation; Kid’s Health
What Is It?
A rare bleeding disorder that prevents the blood from clotting properly.
What Causes It?
Hemophilia can be caused by the following factors:
... moreDown Syndrome
Source of Information: Webmd.com
What Is It?
A lifelong condition in which a person is born with distinct physical features, such as a flat face and short neck, and some degree of cognitive disability.
What Causes It?
Abnormal cell division in the early stages of fetal development.
What Are the Symptoms/Risks?
Possible... more

Cystic Fibrosis
Source of Information: Webmd.com
What Is It?
Disease that causes mucus to become thick, dry, and sticky. It builds up and causes problems on many of the body’s organs.
What Causes It?
It is a genetic disorder.
What Are the Symptoms/Risks?
Severe breathing problems and lung disease. Other possible problems... more
Cleft Palate/Cleft Lip
Source of Information: Webmd.com
What Is It?
A cleft palate is a treatable birth defect in which the roof of the mouth (palate) does not develop correctly during pregnancy, leaving an opening (cleft). A cleft lip appears as one or more splits (clefts) in the upper lip.
What Causes It?
Genetic and environmental factors. Children... more