It is extremely uncommon and almost impossible for a mother's parenthood to be in doubt, but the same cannot be said for a father. If a woman had multiple male sexual partners around the time that a baby was conceived, then any of the men could feasibly lay a claim of paternity to the baby. In some cases, simply a mother's word is good enough for the courts to decide paternity, but this can lead to a number of problems, such as the man claiming that he is not the father or another man claiming paternity.
Paternity is most often contested in instances of unmarried couples who conceived a child out of wedlock. There are many reasons that people may try to assert or deny paternity, such as a desire to take a more active role in the child's life or to avoid child support payments. In instances of questionable or contested paternity in Texas, a paternity suit is often used to determine true paternity.
The purpose of a paternity suit is to determine whether or not a parent is biological, and multiple people can file to establish paternity. A paternity test could be requested by a mother, trying to encourage a man to step up in his child's life, a man trying to deny parentage to avoid child support or even a child seeking to know who their true father is. Paternity is often a complex legal process, so it is in the best interests of all involved to enlist the aid of an attorney.
Whatever side you fall on in questions of establishing paternity, legal assistance can only benefit you. Establishing paternity is a very serious matter, and the ramifications could affect the lives of all involved: child, mother and father. It is important that the matter is handled as thoroughly as possible, and that nobody is taken advantage of in the process.