What Causes Numbness And Color Discoloration Of Thumb?
Likely a bruise, color change needs evaluation
Detailed Answer:
Thank you for asking
i read your question and i understand your concern. With history of multiple infarcts in past this numbness and color discoloration of thumb needs evaluation and work up to rule out any vascular compromises like thoracic outlets, raynaud's or any other condition causing cyanosis of fingers or gangrene.
One likely possibility of this painful color discoloration be a mere bruise or a small hematoma which is very possible in situations like workouts and weight lifting exercises. Applying cold ice and anti inflammatory medication should do the job. Although you should consult a doctor as color change and getting cold of an inflamed finger are bad signs and need assessment and prompt management.
I hope it helps. take good care of yourself and dont forget to close the discussion please.
Regards
Khan