How long should it take for the partially torn ucl in my thumb to completely heal?

4-6 weeks: Depending upon your health, medicaitons and the degree of tear and injury, it should take 4-6 weeks. This is variable and will be determined by our hand surgeon and therapy.

Partial UCL tear: Typically, partial injuries to the ligament are immobilized for several weeks, while complete rupture of the ligament usually requires surgical repair.