Should i seek further treatment for tibia hematoma, soft tissue damage due to auto accident that is still largely visible and painful 6 weeks later?

Yes : 6 weeks after an accident and you still have painful bruise along the shin, you need have it looked at again by a physician to rule out a nondisplaced fracture.

Tibial Hematoma: Yes, whenever a medical condition fails to adequately improve or resolve, it is important to follow-up with your doctor. Acute traumatic injuries, such as a tibial hematoma, that continue to be painful and largely visible at 6 weeks, warrant a second visit to re-evaluate the injury. An appropriate plan of care can be developed based on these findings.