Medieval physicians believed that the body was composed of four humors: blood, phlegm, yellow bile, and black bile. An imbalance of these humors was thought to cause illness.

Bloodletting was a common treatment for an imbalance of humors. It was believed that removing blood would help to restore the balance of humors in the body.

The primary role of the physician in medieval medicine was to diagnose and treat illness. Physicians would use a variety of methods to diagnose illness, including examining the patient's urine and pulse, and asking about their symptoms.

Cataract surgery was not a common surgical procedure performed in medieval times. This is because medieval physicians did not have the necessary instruments or knowledge to perform this type of surgery.

Willow bark was the most common type of herbal remedy used in medieval medicine. It was used to treat a variety of conditions, including pain, fever, and inflammation.

Cancer was not a common cause of death in medieval times. This is because medieval physicians did not have the knowledge or technology to diagnose and treat cancer.

The average life expectancy in medieval times was 30-40 years. This was due to a number of factors, including poor sanitation, lack of medical knowledge, and frequent outbreaks of disease.

Vaccination was not a common medical practice in medieval times. This is because medieval physicians did not know about the existence of germs or how they caused disease.

Depression was the most common type of mental illness treated in medieval times. This is because medieval physicians believed that depression was caused by an imbalance of humors.

Exercise was not a common treatment for depression in medieval times. This is because medieval physicians did not believe that exercise had any effect on mental health.

The Canon of Medicine was the most common type of medical text used in medieval times. It was written by the Persian physician Avicenna in the 11th century and was a comprehensive guide to medical knowledge.

The stethoscope was not a common medical instrument used in medieval times. This is because medieval physicians did not know about the existence of the circulatory system.

Leper hospitals were the most common type of hospital in medieval times. This is because leprosy was a common and highly contagious disease in medieval Europe.

Cataract surgery was not a common medical procedure performed in medieval times. This is because medieval physicians did not have the necessary instruments or knowledge to perform this type of surgery.