Hi,
Thanks for your detailed history about a fluid filled hole after finger
amputation that does not cause pain, inflammation or swelling.
The commonest causes of such an occurrence are as follows:
Some dead bony splinter can cause foreign body rection as this is not the healthy part.
Sinus formation that is line by skin,
This can be diagnosed and treated in the following ways:
X-ray of the finger can show if there is any bone splinter or so.
Exporation is the best way.
This allows removal of any foreign body and tract that is lined by epithelium.
This will allow the proper healing and your problem will be gone.
Consult a Surgeon for proper clinical evaluation, investigations and management.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon