The U. S. Constitution contains no express right to privacy. The Bill of Rights, however, reflects the concern of James Madison and other framers for protecting
specific aspects of privacy, such as the privacy of beliefs (1st Amendment), privacy of the home against demands that it be used to house soldiers (3rd Amendment), privacy of the person and possessions as against unreasonable searches (4th Amendment), and the 5th Amendment's privilege against self-incrimination, which provides protection for the privacy of personal information. In addition, the
Ninth Amendment states that the "enumeration of certain rights" in the Bill of Rights "shall not be construed to deny or disparage other rights retained by the people." The meaning of the Ninth Amendment is elusive, but
some persons (including Justice Goldberg in his Griswold concurrence) have
interpreted the Ninth Amendment as justification for broadly reading the Bill of Rights to protect privacy in ways not specifically provided in the first eight amendments.
The question of whether the Constitution protects privacy in ways not expressly provided in the Bill of Rights is controversial. Many originalists, including most famously Judge Robert Bork in his ill-fated Supreme Court confirmation hearings, have argued that no such general right of privacy exists. The Supreme Court, however, beginning as early as 1923 and continuing through its recent decisions,
has broadly read the "liberty" guarantee of the Fourteenth Amendment to guarantee a fairly broad right of privacy that has come to encompass decisions about child rearing, procreation, marriage, and termination of medical treatment. Polls show most Americans support this broader reading of the Constitution.
http://law2.umkc.edu/faculty/projects/ftrials/conlaw/rightofprivacy.html