The reasons for a marriage annulment can vary depending on legal jurisdictions, but commonly include instances of fraud, bigamy, consanguinity, and mental incompetence. These grounds encompass:
1. Prior Existing Marriage: If either spouse was already married to someone else at the time of the marriage in question.
2. Underage Marriage: If either spouse was too young to marry, or underage without required court or parental consent. In some cases, the marriage may still be valid if it continues beyond the younger spouse reaching marriageable age.
3. Incapacity Due to Substance Influence: If either spouse was under the influence of drugs or alcohol at the time of the marriage.
4. Mental Incapacity: If either spouse was mentally incompetent at the time of the marriage.
5. Consent Obtained through Fraud or Force: If consent to the marriage was obtained through fraud or force.
6. Physical Incapacity: If either spouse was physically incapable of marriage, typically due to chronic inability to engage in sexual intercourse.
7. Prohibited Relationship: If the marriage is prohibited by law due to the relationship between the parties, known as the “prohibited degree of consanguinity.” This often involves close relatives such as first cousins or in some jurisdictions, even second cousins.
8. Prisoners Sentenced to Life Imprisonment: Prisoners serving life sentences are typically prohibited from marrying.
9. Concealment: If one of the parties concealed pertinent information such as a drug addiction, prior criminal record, or having a sexually transmitted disease.