Air traveling, especially when it is a long-haul flight, can result in some situations that can cause negative impacts on passengers. People with prior health problems may be more affected by these situations. For example, cabin air pressure may negatively affect those who have health issues, and whether the oxygen levels are regulated for a healthy person.

Situations where air travel is not recommended

1. When your infant is younger than a week.

2. When pregnant women are in their last four weeks or the first week after they gave birth.

3. Chest pain or angina pectoris felt even at rest.

4. Cases of any serious and contagious diseases.

5. Increased intracranial pressure due to bleeding, trauma, and infection.

6. Sinus infection, ear, nose, and throat infections (especially if the Eustachian tube is blocked).

7. Recent myocardial infarction and crisis.

8. Severe chronic respiratory disease, breathlessness at rest, or unresolved pneumothorax.

9. Sickle cell anemia.

10. Those with uncontrolled arterial hypertension with a systolic pressure greater than 200 mmHg.

11. A recent surgical intervention or medical trauma where air or gas is trapped (especially abdominal trauma, gastrointestinal surgeries, head-face-eye injuries, brain surgeries, and vitrectomies).

12. Right after scuba diving (At least 24 hours after free diving for several days, and at least 12 hours after diving for 2 hours).

The diseases that require consultation of a doctor to take a flight are as follows:

1. Cancer,

2. Cardiovascular Diseases,

3. Chronic Respiratory Disease,

4. Epilepsy,

5. Anemia,

6. Unstable diabetes

7. Patients with immunosuppressive medications

8. Patients on dialysis

9. Multiple sclerosis (MS)

People with the medical conditions above and with the suspicion of some other disease must be consulted before taking a flight. During the time of such a suspicion, the airline company may demand a clean bill of health. All the medications that are needed must be carried handbag bag that is accessible during and after the flight. Also, people with severe food allergies should be cautious during in-flight caterings.