Does every HT patient suffer shock loss?

It is very unlikely that every individual will get shock loss after hair transplantation surgery. Shock loss is due to the loss of normal hair whether it is from donor site or recipient area.  It can occur with both FUE and strip procedures.  Usually if it occurs it will take place in the recipient area.  
Shock loss from hair transplant can occur due to the following:
Anesthesia-  excessively long procedures taking longer than 12 hours can induce shock loss more likely.  the repeated use of lidocaine, marcaine, and perhaps most importantly epinephrine can affect nourishment of the hairTraumatic harvest-  In strip surgery, traumatic harvest can induce shock loss.  Recipient area trauma- during the incision making process the hairs are either crushed or cut and damaged during the process. 
Ways to minimize shock loss are as follows:
Improve recipient bed and donor area environment.  Make your recipient environment improved by addition of growth factors and/or PRP to help reduce incidence of shock loss to native hairs.Use of Rogaine and Propecia- can help miniaturized hair become more stable and less likely to fall out during procedure9xRobotArtas-  The latest version of the robot can make recipient sites and can determine angle of existing hair and help ensure that the angle will not damage existing hair.  Especially helpful in patients where you are transplanting hair to create densityMinimize anesthesia time and procedure time- We limit number of grafts to a safe number per session.  Extended anesthesia periods and harvest times can cause patients to have a higher chance of shock loss.  The 9x Robot harvests between 1000-1500 grafts per hour making it superior to previous additions and traditional FUE approaches.Best,
Anil Shah

Not every patient suffer shock hair loss. Most people actually do not have issues with shock hair loss if the surgery is planned well between the doctor and patient.  In other words, the doctor probably would not recommend surgery if there is a high risk of shock hair loss.

Not every patient will experience shock loss, but there is always a possibility. If the hair sheds in the transplanted area, the new grafts will grow and offset the hair that was lost over time. Your HT surgeon will instruct you on proper care of this area to help minimize further hair loss.

The short answer is no. Not every patient suffers shock loss. But years of experience has taught me that when talking about shock loss patients get confused. There are two kinds of shock loss as the average person understands:The first and (correct use of the term Shock Loss) is loss of surrounding hair in the transplant area due to the trauma of the surgery. This may or may not recover, but usually does if it was not in the process of dying anyway from normal pattern hair loss. The second (and incorrect use of the term Shock Loss) is when the hair in the transplants fall out after a few weeks as the follicles go into "hibernation" only to begin to regrow about 4 months later. This process happens 98% of the time and is the norm. The bottom line is patients must have patience for their new hairs to grow, although a lucky 2% grow right from surgery. No one knows why. 

Every patient is unique and the density of your native hair and the density of your transplant can play a major role.

Shock loss depends on many factors including the degree of hair loss  and the density in the recipient area. With proper care the hair restoration surgeon should be able to minimize it. 

Shedding
after a hair transplant while on the drug propecia is unusual. The shock loss phenomenon usually hits miniaturized hairs and that is why I cover patients with the drug finasteride (Propecia). If you are having such loss, it is often an acceleration of your normal hair loss
process. If the shedding is in the transplanted area, the new grafts, when they
grow, will off set it. If the shedding is from all over the front and top of
the head it sounds like shock loss which usually accelerates the hair loss that
you might have seen two years after a hair transplant had you not been on the
drug. If you are developing a more advanced balding pattern with acceleration
of your hair loss, which a Bulk Measurements with the HAIRCHECK instrument can
provide, it will show over a one year time frame, what exactly is your hair
loss (in numbers) and then you and your doctor need to develop a MASTER PLAN
for what may happen to you.