My son is 13 yrs but only 135 cm tall should I see a child endocrinologist

please get TTG test done for your baby and also see a pediatrician to rule out Inflammatory bowel syndrome. TTG test will rule out gluten allergy.

Some cancer treatments, like chemotherapy or radiation, can cause side effects like nausea or fatigue, but it’s not the same for everyone. If you’re feeling sick, talk to your doctor—they can prescribe medicines to help with nausea or suggest lifestyle tips to boost your energy. Eating small, freque....

in that case as mentioned above surgical treatment not required.