Your mother calls one evening and says the rishta has come from your chacha's house. Your first cousin. The whole family is happy. You are not sure it is even allowed. You have seen posts online saying cousin marriage is banned in Pakistan. You have heard it causes sick children. You want one clear answer before you say anything to anyone.
Here it is. Cousin marriage is not banned in Pakistan. It is legal. The choice is yours and your family's. This article shows you what the law says, what the numbers say, and what the doctors say, so you can decide with the full picture.
Is cousin marriage banned in Pakistan?
No. Pakistan has no law that bans marriage between cousins. No statute, no ordinance, and no court judgment makes a first cousin nikah illegal. Marriage between first cousins is valid, and it is registered like any other marriage.
Marriage for Muslims in Pakistan is governed by Muslim personal law. The main law that covers how marriages are registered is the Muslim Family Laws Ordinance, 1961. Section 5 of that law says every marriage solemnized under Muslim law must be registered with the Nikah Registrar of the Union Council. Read the whole ordinance and you will find nothing about cousins. There is no ban, no restriction, and no special permission needed.
Who you cannot marry under Islamic law
The rule comes from the Qur'an. Surah An-Nisa, verses 22 to 24, list the women a man cannot marry. The list includes his mother, his daughter, his sister, his aunts, his nieces, his foster mother, his mother in law, and his step daughter. You can read the full list in Surah An-Nisa, verse 23.
First cousins are not on that list. Under Islamic law, what is not forbidden is allowed. The four main schools of Islamic jurisprudence agree that first cousin marriage is permissible. The Prophet's own marriage to Zaynab bint Jahsh was a first cousin marriage. So religion does not stand in the way of a cousin match.
Why do people think it is banned?
The confusion comes from a few places. One is the debate abroad. In December 2024 a British MP proposed banning first cousin marriage in England, and the BBC covered the proposal widely. People in Pakistan saw that news and assumed the same rule applied at home. It does not.
Another source of confusion is social media. Posts about genetic risks spread fast, and the word ban travels faster than the full story. No parliament in Pakistan has ever passed such a law. Health experts and some legislators have discussed restrictions over the years. Nothing has become law.
How common is cousin marriage in Pakistan?
It is one of the most common marriage patterns in the world. The Pakistan Demographic and Health Survey 2017-18, the national survey, found that nearly half of all marriages in the country are between relatives. About 29 percent of married women are married to a paternal first cousin, and about 21 percent to a maternal first cousin. A PIDE working paper based on the same survey data confirms the numbers.
The reasons are mostly social. Families want to keep property inside the family. Relatives are trusted more than strangers. Dowry costs are often lower. In many areas, refusing a cousin match can be seen as an insult to the family. That pressure is real, and it is why the practice stays common despite the health concerns.
The health side: what doctors say
The law is clear, but doctors raise a separate question. Children of first cousins carry a higher risk of birth defects. The Born in Bradford study, one of the largest of its kind, measured the risk at about 6 percent for related couples, against about 3 percent for unrelated couples. Most babies born to cousins are healthy. But the extra risk is real, and it grows when the family already carries a genetic condition.
Pakistan sees many genetic disorders linked to close family marriage, including thalassemia. DW's report on genetic disorders in Pakistan describes families where several children carry inherited diseases. Since 2020, Punjab has a task force on genetic diseases, and the children's hospital in Lahore offers genetic screening for families. If you are considering a cousin marriage, a genetic test before the nikah is a sensible step. Many families in Pakistan now ask for it before finalizing a match.
What this means for you
Here is the plain version. Cousin marriage is legal in Pakistan, so no one can stop you on legal grounds. The other rules of marriage still apply. Both of you must be of legal marriage age under your province's law. Both of you must consent freely. The nikah must be registered. And the health question is yours to manage. Talk to a doctor, ask about genetic screening, and decide with your eyes open.
People ask this kind of question about many things in Pakistan. We have answered is abortion legal in Pakistan and is cryptocurrency legal in Pakistan the same way, with the law in front of us. And if you are planning to marry against family wishes, read is court marriage valid in Islam in Pakistan. If the two of you are both adults and married freely, you can read about the legal view on love marriage in Islam in Pakistan. If your nikah is done but you never got the computerised record, read how to get a marriage certificate from NADRA in Pakistan. And to find or verify your marriage record, read how to check your marriage certificate online in Pakistan.
Read more on the Lexiber blog, or see how a legal AI with cited sources can answer your questions in English or Urdu.
One more question people ask is whether two people of the same sex can marry in Pakistan. The law only recognises marriage between a man and a woman. We have answered that in the guide on marriage laws in Pakistan.
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