No.
Call 111 or make a GP appointment if this happens to you regularly and you know that you do not suffer from chronic bronchitis.
Particularly if the amount of blood is more than a few drops or you are experiencing pain.
Regularly coughing up blood has always been a sign that someone was very one with the person's health when they have not been in a fight, boozing and did not have a chest infection.
A blood clot, pneumonia, cancer, tuberculosis or chronic obstructive pulmonary disease
If you are coughing up blood that is quite dark and contains something that looks like coffee granules or bits of food, the blood could be coming from your digestive system. You should immediately go to hospital to get checked out by a doctor.