1. Achilles tendon contracture: When the Achilles tendon heals due to past injury or tear, it may cause the Achilles tendon to contract, making it stiff and shortened, which will make the heel unable to touch the ground, thus making the toes stumble when walking.
2. Scapulohumeral periarthritis or Achilles tendinitis: These diseases will cause scars in the tissues around the Achilles tendon, which will further limit the free movement of the Achilles tendon and make the toes stand on tiptoe when walking.
3. Bad walking habits: Some people may have developed a wrong posture when learning to walk, and they are used to walking with their forepaws, which has formed a bad walking posture over time.
4. trauma: if the foot has been hit, sprained and other trauma, it may also cause the toes to stumble when walking.
5. Lumbar disc herniation: When the fibrous ring of lumbar disc degenerates, becomes thinner or ruptures, it may cause compression on nerve roots, which may lead to lower limb pain and walking disorder, making the toes stand on tiptoe when walking.
It should be noted that if this way of walking is habitual or persistent, it may have a negative impact on health, such as increasing the burden on feet and knees. Therefore, if there are people who walk this way, it is recommended to seek the advice of medical professionals to see if it needs to be adjusted or corrected.