What miracles were performed during the beatification and canonization processes of Mother Teresa? Mother Teresa was recently recognized as a Saint. The process of canonization (becoming a saint) involves the performing of a miracle. From Wikipedia: 


  If the Venerable was not a martyr—all non-martyrs are "confessors" as they "confessed" or bore witness to their faith by how they lived their lives—it must be proven that a miracle has taken place by his or her intercession: that is, that God has shown a sign that the person is enjoying the Beatific Vision by God performing a miracle in response to the Blessed's prayers.


The first such miracle results in the person's beatification, recognized with the title "Blessed". The second such miracle results in the person's canonization, recognized with the title "Saint".

What were the miracles that were performed during the beatification and canonization processes of Mother Teresa?
The first miracle, required for beatification, occurred in 1998 when a cancerous tumour was removed from the abdomen of an Indian woman named Monica Bersa, after a beam of light had emanated from a picture of Mother Teresa contained in a locket. This was recognised by the Church as a miracle in 2002. However the woman's husband disputes whether her cure really was a miracle. He says, "It is much ado about nothing. My wife was cured by the doctors and not by any miracle." However, Mrs Bersa asserts that her cure was miraculous and has sought financial help from the Sisters of Charity, accused the nuns of abandoning her to a life of penury.

The second miracle accepted by the Church, leading  to canonisation as a saint, was the healing in 2008 of a Brazilian man with multiple brain tumours.