Finger joints are thinner than the front end. Consider acromegaly, mortar and pestle finger, finger trauma, etc. 1. Acromegaly: after puberty, if the growth hormone is abnormally secreted, it can lead to acromegaly, with symptoms such as widening of the fingers and hypertrophy of the skin and soft tissues, which is manifested by the thinness of the finger joints compared with the front end. 2. Pestle finger: chronic hypoxia, metabolic disorders or poisoning at the end of the finger can cause hyperplasia and hypertrophy of the end of the fingers and toes, such as congenital heart disease, bronchiectasis, Crohn’s disease, syphilis and other diseases. 3. Finger trauma: finger joint fracture or finger cutting injury and other serious traumatic injuries require surgical treatment, after the incision, suture and other operations, as well as the later self-repair of the finger, may eventually lead to finger deformation, finger joints than the front end of the performance of thin. Finger joints thinner than the front end may also have other pathological factors, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.