Due to the wide variety and nature of illnesses, the Catholic Church invokes dozens upon dozens of different saints for the healing of different ailments, having discerned that certain saints have been powerful in granting graces of patience and strength and even recovery in regard to certain illnesses.
St. Raphael the archangel, however, is commonly regarded as the great patron of healers, like physicians and other medical workers. His intercession as a healer and exorcist of demons is recorded in the book of Tobit.
Patron saint of the pancreas
I see no specific saint for healing of children. However, St. Brigid of Ireland is considered as the patron saint of healers.
The patron saint against venereal disease is St. Fiacre.
There are no patron saints for the general term of healing. However, there are patrons for specific maladies.
There are no patron saints of healing after hip surgery.
The patron saint against stiff or sore joints is St. Werenfridus.
St. Luke is the Saint after going in to surgery and the saint for Surgeons.
Saint Dymphna is often considered the patron saint of those suffering from emotional and nervous disorders. She is known for interceding for those facing mental health challenges and is believed to offer comfort and healing to those in need.
There is no specific patron saint of hemorrhoids in the Catholic Church. However, some people may seek the intercession of Saint Fiacre, who is considered the patron saint of healing and ailments related to the body.
Brother AndrΓ© is the patron saint of the sick, the impoverished, and those in need of healing. He is particularly known for his devotion to Saint Joseph and his contribution to the construction of the Saint Joseph's Oratory in Montreal, Canada.
She's the patron saint for nurses because when she was 16 she helped the sick and dieing at a hospital. People said she had healing powers
The patron saints against wounds are Sts. Aldegundis, Marciana, and Rita of Cascia.