Hello and welcome to HCM,
The presence of expectoration/ sputum suggests a chest or throat pathology.
The presence of blood, orange color (most probably blood), black color (presence of altered blood) in sputum can be due to trauma to the throat, cancer of the throat, chest infection
(most common TB), lung cancer
to name a few causes. need to get a complete examination of the throat to look for any lesion in the throat.
A X-ray chest and/or CT chest will help to look for any lesion in the chest.
Sputum examination is an important investigation. Malignant cells if present will be readily picked up on the cytology smears.
Consult an ENT specialist
and pulmonologist for clinical examination and relevant investigations.
Thanks and take care
Dr Shailja P Wahal