First, go see a doctor immediately.
Anything other than air and mucus coming out of your lungs is abnormal, blood indicates that there is damage in your lungs, possibly due to infection (Pneumonia, Tuberculosis, etc.) or, worse, cancer.
You should definitely see a doctor immediately -- lung conditions should always be taken seriously.
coughing and coughing up blood, wheezing, chest pains or tightness of the chest and shortness of breath
Sometimes chronic coughing, or coughing up blood, shortness of breath, chest pain, or wheezing.
Coughing up blood, sucking or hissing sounds coming from a chest wound, frothy blood appearing from air bubbles coming from the wound
coughing up blood sucking or hissing sounds comming from a chest wound frothy blood appering from air bubbles coming form the wound
coughing up blood sucking or hissing sounds comming from a chest wound frothy blood appering from air bubbles coming form the wound
chest pains and even if so sever coughing up blood
Coughing up blood, Sucking or hissing sound coming from the wound, frothy blood coming from the wound.
The main cause of pain in the chest, arms, and back while coughing is muscle fatigue. These muscles are not typically used and will quickly tire through coughing.
Asthma
Symptoms of smoker's lung, usually referring to lung cancer, include coughing, which can produce blood and lead to chest pain. Shortness of breath is also common.
30%
The coughing, itself, will not cause costochondritis, but if there is a viral infection in the chest, then that may be the cause.