If you do have a finger sprain, your doctor will assign it a grade based on how severe it is: Grade 1: Your joint is stable but you have some stretching or microtearing in your ligament.

In one large study, the average ratio of index to ring finger length was 0.98 in men and 1.0 in women. Women and men with ratios less than 1 were significantly. more likely to develop arthritis.

Index to ring finger length ratio (2D:4D) is a trait known for its sexual differences. Men typically have shorter second than fourth digits; in women, these fingers tend to be about equal in length.